89
89
Sep 17, 2013
09/13
by
T. Montaruli
texts
eye 89
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The ANTARES deep-sea neutrino telescope will be located at a depth of 2400 m in the Mediterranean Sea. Deployment of the detector will commence this Autumn and is expected to be completed by the end of 2004. With a surface area of the order of 0.1 km^2 it will be one of the largest European detectors. The aim of neutrino telescopes is to detect high-energy neutrinos from astrophysical sources whilst also providing information on the early Universe. Successful operation of ANTARES in a deep sea...
Source: http://arxiv.org/abs/astro-ph/0207531v1
38
38
Sep 23, 2013
09/13
by
T. Montaruli; F. Ronga
texts
eye 38
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We propose a test to compare the speed of muons and muon neutrinos produced in the same bundles in the atmosphere. By comparing the arrival times of primary muons and muons induced by neutrinos, experiments such as Super-Kamiokande, IceCube and ANTARES could verify recent hints on the possibility that neutrinos have a velocity larger than the speed of light. For smaller detectors such as MINOS and OPERA, where it may be challenging to recognize downgoing muons induced by neutrinos inside the...
Source: http://arxiv.org/abs/1109.6238v4
47
47
Sep 22, 2013
09/13
by
T. Montaruli; for ANTARES Collaboration
texts
eye 47
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The ANTARES project aims at the construction of an underwater neutrino telescope at the scale of 0.1 km^2 2400 m deep in the Mediterranean Sea. After a 4-year R&D program, the ANTARES project has entered the construction phase which will be concluded by the end of 2004. The current status of the project is reported.
Source: http://arxiv.org/abs/hep-ex/0201009v1
35
35
Sep 20, 2013
09/13
by
T. Montaruli; for the MACRO Collaboration
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eye 35
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MACRO can detect three topologies of neutrino induced events, corresponding to different parent neutrino energies. The most numerous sample is made of upward throughgoing muons induced by atmospheric neutrinos of average energy 100 GeV. We have observed less events than expected events and the observed zenith distribution does not fit the expected one in the no-oscillation hypothesis, giving a maximum probability of 0.1 percent. Considering the neutrino (numu-nutau) oscillation hypothesis the...
Source: http://arxiv.org/abs/hep-ex/9810017v1
40
40
Sep 17, 2013
09/13
by
E. Bugaev; T. Montaruli; I. Sokalski
texts
eye 40
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If neutrinos produced in astrophysics sources oscillate, neutrino telescopes can have a chance to detect signals from tau-neutrinos. We present an estimate of the 'double bang' event rate produced by tau neutrinos in cubic kilometer scale detectors.
Source: http://arxiv.org/abs/astro-ph/0305284v1
38
38
Sep 20, 2013
09/13
by
W. Bednarek; G. F. Burgio; T. Montaruli
texts
eye 38
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We review recently developed models of galactic discrete sources of high energy neutrinos. Some of them are based on a simple rescaling of the TeV $\gamma$-ray fluxes from recently detected galactic sources, such as, shell-type supernova remnants or pulsar wind nebulae. Others present detailed and originally performed modeling of processes occurring close to compact objects, i.e. neutron stars and low mass black holes, which are supposed to accelerate hadrons close to dense matter and radiation...
Source: http://arxiv.org/abs/astro-ph/0404534v1
50
50
Sep 19, 2013
09/13
by
T. Montaruli; F. Ronga; for the MACRO Collaboration
texts
eye 50
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We look for space-time correlations between 2233 gamma-bursts in the Batse Catalogs and 894 upward-going muons produced by neutrino interactions in the rock below or inside MACRO. Considering a search cone of 10 degrees around GRB directions and a time window of 200 s we find 0 events to be compared to 0.035 expected background events due to atmospheric neutrinos. The corresponding upper limit (90% c.l.) is 0.87 * 10^-9 cm^-2 upward-going muons per average burst.
Source: http://arxiv.org/abs/astro-ph/9812333v1
62
62
Sep 21, 2013
09/13
by
E. V. Bugaev; T. Montaruli; I. A. Sokalski
texts
eye 62
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We present results of the detailed Monte Carlo calculation of the rates of double-bang events in 1 km$^3$ underwater neutrino telescope with taking into account the effects of $\tau$-neutrino propagation through the Earth. As an input, the moderately optimistic theoretical predictions for diffuse neutrino spectra of AGN jets are used.
Source: http://arxiv.org/abs/astro-ph/0311086v1
97
97
Jul 20, 2013
07/13
by
G. Battistoni; A. Ferrari; T. Montaruli; P. R. Sala
texts
eye 97
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In order to benchmark the 3-dimensional calculation of the atmospheric neutrino flux based on the FLUKA Monte Carlo code, muon fluxes in the atmosphere have been computed and compared with data taken by the CAPRICE94 experiment at ground level and at different altitudes in the atmosphere. For this purpose only two additions have been introduced with respect to the neutrino flux calculation: the specific solar modulation corresponding to the period of data taking and the bending of charged...
Source: http://arxiv.org/abs/hep-ph/0107241v2
52
52
Sep 18, 2013
09/13
by
G. Battistoni; A. Ferrari; T. Montaruli; P. R. Sala
texts
eye 52
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The atmospheric neutrino flux calculated with FLUKA was originally limited to 100-200 GeV for statistical reasons. In order to make it available for the analysis of high energy events, like upward through-going muons detected by neutrino telescopes, we have extended the calculation so to provide a reliable neutrino yield per primary nucleon up to about 10**6 GeV/nucleon, as far as the interaction model is concerned. We point out that the primary flux model above 100 GeV/nucleon still...
Source: http://arxiv.org/abs/hep-ph/0305208v1
116
116
Sep 17, 2013
09/13
by
G. Battistoni; A. Ferrari; T. Montaruli; P. R. Sala
texts
eye 116
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The 3-dimensional (3-D) calculation of the atmospheric neutrino flux by means of the FLUKA Monte Carlo model is here described in all details, starting from the latest data on primary cosmic ray spectra. The importance of a 3-D calculation and of its consequences have been already debated in a previous paper. Here instead the focus is on the absolute flux. We stress the relevant aspects of the hadronic interaction model of FLUKA in the atmospheric neutrino flux calculation. This model is...
Source: http://arxiv.org/abs/hep-ph/0207035v2
47
47
Sep 21, 2013
09/13
by
T. Montaruli for The MACRO Collaboration; M. Ambrosio et al
texts
eye 47
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We present updated results on the search for a neutrino signal from the core of the Earth and of the Sun induced by Weakly Interacting Massive Particles (WIMPs). In this paper we concentrate on neutralinos as WIMP candidates. The 971 and 642 events used respectively for the search from the Sun and from the Earth are compatible with the background of atmospheric neutrinos. Consequently we calculate flux limits for various search cones around these sources. Limits as a function of the neutralino...
Source: http://arxiv.org/abs/hep-ex/9905021v1
41
41
Sep 21, 2013
09/13
by
T. Montaruli for The NEMO Collaboration; M. Ambriola et al
texts
eye 41
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We report on the results of a Monte Carlo simulation study of a km^3 scale deep underwater Cherenkov detector aimed at detecting neutrinos of astrophysical origin. This analysis has been undertaken as part of the NEMO R&D project to develop such an experiment close to the Southern Italian coasts. We have studied the reconstruction capabilities of various arrays of phototubes in order to determine the detector geometries which optimize performance and cost. We have also investigated the...
Source: http://arxiv.org/abs/hep-ex/9905019v1
64
64
Sep 21, 2013
09/13
by
T. Montaruli for The MACRO Collaboration; M. Ambrosio et al
texts
eye 64
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We use a sample of 990 upward-going muons, induced primarily by atmospheric neutrinos, to search for neutrinos of astrophysical origin. No evidence has been found using the event direction information. Flux limits of the order of 10^-15 cm^-2 s^-1 are imposed on current models for candidate point-sources. A space-time correlation search has been undertaken between 2328 BATSE gamma ray bursts (GRBs) and MACRO upward-going muons.
Source: http://arxiv.org/abs/hep-ex/9905020v1
57
57
Sep 21, 2013
09/13
by
G. Battistoni; A. Ferrari; P. Lipari; T. Montaruli; P. R. Sala; T. Rancati
texts
eye 57
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An extensive 3-dimensional Monte Carlo calculation of the atmospheric neutrino flux is in progress with the FLUKA Monte Carlo code. The results are compared to those obtained under the 1-dimensional approximation, where secondary particles and decay products are assumed to be collinear to the primary cosmic ray, as usually done in most of the already existing flux calculations. It is shown that the collinear approximation gives rise to a wrong angular distribution of neutrinos, essentially in...
Source: http://arxiv.org/abs/hep-ph/9907408v1
50
50
Sep 20, 2013
09/13
by
T. Montaruli; R. Bellotti; F. Cafagna; M. Circella; C. N. De Marzo; P. Lipari
texts
eye 50
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The design of an Airwatch type space mission can greatly benefit from a flexible simulation code for establishing the values of the main parameters of the experiment. We present here a code written for this purpose. The cosmic ray primary spectrum at very high energies, the atmosphere modelling, the fluorescence yield, the photon propagation and the detector response are taken into account in order to optimize the fundamental design parameters of the experiment, namely orbit height, field of...
Source: http://arxiv.org/abs/hep-ex/9810014v1
43
43
Sep 21, 2013
09/13
by
David Steele; for the VERITAS Collaboration; M. T. Carini; P. Charlot; O. Kurtanidze; A. Lahteenmaki; T. Montaruli; A. C. Sadun; M. Villata
texts
eye 43
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In September 2005, the observing program of the Whipple 10 m gamma-ray telescope was redefined to be dedicated almost exclusively to AGN monitoring. Since then the five Northern Hemisphere blazars that had already been detected at Whipple are monitored routinely each night that they are visible. Thanks to the efforts of a large number of multiwavelength collaborators, the first year of this program has been very successful. We report here on the analysis of Markarian 421 observations taken from...
Source: http://arxiv.org/abs/0709.3869v1
3
3.0
Jun 30, 2018
06/18
by
J. A. Aguilar; A. Basili; V. Boccone; F. Cadoux; A. Christov; D. della Volpe; T. Montaruli; L. Platos; M. Rameez; for the SST-1M sub-Consortium
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eye 3
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The focal-plane camera of $\gamma$-ray telescopes frequently uses light concentrators in front of light sensors. The purpose of these concentrators is to increase the effective area of the camera as well as to reduce the stray light coming at large incident angles. These light concentrators are usually based on the Winston cone design. In this contribution we present the design of an hexagonal hollow light concentrator with a lateral profile optimized using a cubic B\'ezier function to achieve...
Topics: Physics, Instrumentation and Methods for Astrophysics, Astrophysics, Instrumentation and Detectors
Source: http://arxiv.org/abs/1404.2734
13
13
Jun 28, 2018
06/18
by
E. J. Schioppa; F. Cadoux; A. Christov; D. della Volpe; Y. Favre; M. Heller; T. Montaruli; A. Porcelli; M. Rameez; I. Troyano Pujadas; W. Bilnik; J. Blocki; L. Bogacz; T. Bulik; M. Curylo; M. Dyrda; A. Frankowski; L. Grudniki; M. Grudzinska; B. Idzkowski; M. Jamrozy; M. Janiak; J. Kasperek; K. Lalik; E. Lyard; E. Mach; D. Mandat; A. Marszalek; J. Michaowski; R. Moderski; A. Neronov; J. Niemiec; M. Ostrowski; P. Pasko; M. Pech; E. Prandini; P. Rajda; P. Schovanek; K. Seweryn; K. Skowron; V....
texts
eye 13
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The prototype camera of the single-mirror Small Size Telescopes (SST-1M) proposed for the Cherenkov Telescope Array (CTA) project has been designed to be very compact and to deliver high performance over thirty years of operation. The camera is composed of an hexagonal photo-detection plane made of custom designed large area hexagonal silicon photomultipliers and a high throughput, highly configurable, fully digital readout and trigger system (DigiCam). The camera will be installed on the...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1508.06453
12
12
Jun 28, 2018
06/18
by
S. Toscano; E. Prandini; W. Bilnik; J. Błocki; L. Bogacz; T. Bulik; F. Cadoux; A. Christov; M. Curyło; D. della Volpe; M. Dyrda; Y. Favre; A. Frankowski; Ł. Grudnik; M. Grudzińska; M. Heller; B. Idźkowski; M. Jamrozy; M. Janiak; J. Kasperek; K. Lalik; E. Lyard; E. Mach; D. Mandat; A. Marszałek; J. Michałowski; R. Moderski; T. Montaruli; A. Neronov; J. Niemiec; M. Ostrowski; P. Paśko; M. Pech; A. Porcelli; M. Rameez; P. Rajda; E. jr. Schioppa; P. Schovanek; K. Seweryn; K. Skowron; V....
texts
eye 12
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Imaging Atmospheric Cherenkov Telescopes (IACTs) are ground-based instruments devoted to the study of very high energy gamma-rays coming from space. The detection technique consists of observing images created by the Cherenkov light emitted when gamma rays, or more generally cosmic rays, propagate through the atmosphere. While in the case of protons or gamma-rays the images present a filled and more or less elongated shape, energetic muons penetrating the atmosphere are visualised as...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1509.00266
22
22
Jun 28, 2018
06/18
by
E. Prandini; M. Heller; E. Lyard; E. jr. Schioppa; A. Neronov; W. Bilnik; J. Błocki; L. Bogacz; T. Bulik; F. Cadoux; A. Christov; M. Curyło; D. della Volpe; M. Dyrda; Y. Favre; A. Frankowski; Ł. Grudnik; M. Grudzińska; B. Idźkowski; M. Jamrozy; M. Janiak; J. Kasperek; K. Lalik; E. Mach; D. Mandat; A. Marszałek; J. Michałowski; R. Moderski; T. Montaruli; J. Niemiec; M. Ostrowski; P. Paśko; M. Pech; A. Porcelli; M. Rameez; P. Rajda; P. Schovanek; K. Seweryn; K. Skowron; V. Sliusar; M....
texts
eye 22
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The SST-1M telescope is one of the prototypes under construction proposed to be part of the future Cherenkov Telescope Array. It uses a standard Davis-Cotton design for the optics and telescope structure, with a dish diameter of 4 meters and a large field-of-view of 9 degrees. The innovative camera design is composed of a photo-detection plane with 1296 pixels including entrance window, light concentrators, Silicon Photomultipliers (SiPMs), and pre-amplifier stages together with a fully digital...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1508.06397
16
16
Jun 28, 2018
06/18
by
A. Porcelli for the CTA Consortium; for the SST-1M sub-consortium; :; W. Bilnik; J. Błocki; L. Bogacz; J. Borkowski; T. Bulik; F. Cadoux; A. Christov; M. Curyło; D. della Volpe; M. Dyrda; Y. Favre; A. Frankowski; Ł. Grudnik; M. Grudzińska; M. Heller; B. Idźkowski; M. Jamrozy; M. Janiak; J. Kasperek; K. Lalik; E. Lyard; E. Mach; D. Mandat; A. Marszałek; J. Michałowski; R. Moderski; M. Rameez; T. Montaruli; A. Neronov; J. Niemiec; M. Ostrowski; P. Paśko; M. Pech; A. Porcelli; E. Prandini;...
texts
eye 16
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The Small-Size Telescope with single-mirror (SST-1M) is a 4 m Davies-Cotton telescope and is among the proposed telescope designs for the Cherenkov Telescope Array (CTA). It is conceived to provide the high-energy ($>$ few TeV) coverage. The SST-1M contains proven technology for the telescope structure and innovative electronics and photosensors for the camera. Its design is meant to be simple, low-budget and easy-to-build industrially. Each device subsystem of an SST-1M telescope is made...
Topics: High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1508.07472
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11
Jun 28, 2018
06/18
by
R. Moderski; W. Bilnik; J. Błocki; L. Bogacz; T. Bulik; F. Cadoux; A. Christov; M. Chruślińska; M. Curyło; D. della Volpe; M. Dyrda; Y. Favre; A. Frankowski; Ł. Grudnik; M. Grudzińska; M. Heller; B. Idźkowski; M. Jamrozy; M. Janiak; J. Kasperek; K. Lalik; E. Lyard; E. Mach; D. Mandat; A. Marszałek; J. Michałowski; T. Montaruli; A. Neronov; J. Niemiec; M. Ostrowski; P. Paśko; M. Pech; A. Porcelli; E. Prandini; E. Pueschel; P. Rajda; M. Rameez; P. Rozwadowski; E. jr Schioppa; P....
texts
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The single mirror small-size telescope (SST-1M) is one of the telescope projects being proposed for the Cherenkov Telescope Array observatory by a sub-consortium of Polish and Swiss institutions. The SST-1M prototype structure is currently being constructed at the Institute of Nuclear Physics in Cracow, Poland, while the camera will be assembled at the University of Geneva, Switzerland. This prototype enables measurements of parameters having a decisive influence on the telescope performance....
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1508.06459
6
6.0
Jun 30, 2018
06/18
by
T. Bretz; H. Anderhub; M. Backes; A. Biland; V. Boccone; I. Braun; J. Buß; F. Cadoux; V. Commichau; L. Djambazov; D. Dorner; S. Einecke; D. Eisenacher; A. Gendotti; O. Grimm; H. von Gunten; C. Haller; C. Hempfling; D. Hildebrand; U. Horisberger; B. Huber; K. S. Kim; M. L. Knoetig; J. H. Köhne; T. Krähenbühl; B. Krumm; M. Lee; E. Lorenz; W. Lustermann; E. Lyard; K. Mannheim; M. Meharga; K. Meier; S. Müuller; T. Montaruli; D. Neise; F. Nessi-Tedaldi; A. K. Overkemping; A. Paravac; F. Pauss;...
texts
eye 6
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Since two years, the FACT telescope is operating on the Canary Island of La Palma. Apart from its purpose to serve as a monitoring facility for the brightest TeV blazars, it was built as a major step to establish solid state photon counters as detectors in Cherenkov astronomy. The camera of the First G-APD Cherenkov Telesope comprises 1440 Geiger-mode avalanche photo diodes (G-APD), equipped with solid light guides to increase the effective light collection area of each sensor. Since no...
Topics: Physics, Instrumentation and Methods for Astrophysics, Astrophysics, Instrumentation and Detectors
Source: http://arxiv.org/abs/1403.3573
139
139
Jul 20, 2013
07/13
by
H. Anderhub; M. Backes; A. Biland; V. Boccone; I. Braun; T. Bretz; J. Buß; F. Cadoux; V. Commichau; L. Djambazov; D. Dorner; S. Einecke; D. Eisenacher; A. Gendotti; O. Grimm; H. von Gunten; C. Haller; D. Hildebrand; U. Horisberger; B. Huber; K. -S. Kim; M. L. Knoetig; J. H. K"ohne; T. Kr"ahenb"uhl; B. Krumm; M. Lee; E. Lorenz; W. Lustermann; E. Lyard; K. Mannheim; M. Meharga; K. Meier; T. Montaruli; D. Neise; F. Nessi-Tedaldi; A. -K. Overkemping; A. Paravac; F. Pauss; D. Renker;...
texts
eye 139
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The First G-APD Cherenkov Telescope (FACT) is designed to detect cosmic gamma-rays with energies from several hundred GeV up to about 10 TeV using the Imaging Atmospheric Cherenkov Technique. In contrast to former or existing telescopes, the camera of the FACT telescope is comprised of solid-state Geiger-mode Avalanche Photodiodes (G-APD) instead of photomultiplier tubes for photo detection. It is the first full-scale device of its kind employing this new technology. The telescope is operated...
Source: http://arxiv.org/abs/1304.1710v1
62
62
Sep 21, 2013
09/13
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D. Horan; V. A. Acciari; S. M. Bradbury; J. H. Buckley; V. Bugaev; K. L. Byrum; A. Cannon; O. Celik; A. Cesarini; Y. C. K. Chow; L. Ciupik; P. Cogan; A. D. Falcone; S. J. Fegan; J. P. Finley; P. Fortin; L. F. Fortson; D. Gall; G. H. Gillanders; J. Grube; G. Gyuk; D. Hanna; E. Hays; M. Kertzman; J. Kildea; A. Konopelko; H. Krawczynski; F.; M. J. Lang; K. Lee; P. Moriarty; T. Nagai; J. Niemiec; R. A. Ong; J. S. Perkins; M. Pohl; J. Quinn; P. T. Reynolds; H. J. Rose; G. H. Sembroski; A. W. Smith;...
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eye 62
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Since September 2005, the Whipple 10m Gamma-ray Telescope has been operated primarily as a blazar monitor. The five Northern Hemisphere blazars that have already been detected at the Whipple Observatory, Markarian 421, H1426+428, Markarian 501, 1ES 1959+650 and 1ES 2344+514, are monitored routinely each night that they are visible. We report on the Markarian 421 observations taken from November 2005 to June 2006 in the gamma-ray, X-ray, optical and radio bands. During this time, Markarian 421...
Source: http://arxiv.org/abs/0901.1225v1
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64
Sep 21, 2013
09/13
by
V. A. Acciari; E. Aliu; T. Arlen; T. Aune; M. Beilicke; W. Benbow; D. Boltuch; S. M. Bradbury; J. H. Buckley; V. Bugaev; K. Byrum; A. Cannon; A. Cesarini; L. Ciupik; W. Cui; R. Dickherber; C. Duke; A. Falcone; J. P. Finley; G. Finnegan; L. Fortson; A. Furniss; N. Galante; D. Gall; G. H. Gillanders; S. Godambe; J. Grube; R. Guenette; G. Gyuk; D. Hanna; J. Holder; C. M. Hui; T. B. Humensky; A. Imran; P. Kaaret; N. Karlsson; M. Kertzman; D. Kieda; A. Konopelko; H. Krawczynski; F. Krennrich; M. J....
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eye 64
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We report on TeV gamma-ray observations of the blazar Mrk 421 (redshift of 0.031) with the VERITAS observatory and the Whipple 10m Cherenkov telescope. The excellent sensitivity of VERITAS allowed us to sample the TeV gamma-ray fluxes and energy spectra with unprecedented accuracy where Mrk 421 was detected in each of the pointings. A total of 47.3 hrs of VERITAS and 96 hrs of Whipple 10m data were acquired between January 2006 and June 2008. We present the results of a study of the TeV...
Source: http://arxiv.org/abs/1106.1210v2
56
56
Sep 23, 2013
09/13
by
The ANTARES Collaboration; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J. J. Aubert; R. Auer; B. Baret; S. Basa; M. Bazzotti; V. Bertin; S. Biagi; C. Bigongiari; M. Bou-Cabo; M. C. Bouwhuis; A. M. Brown; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Ph. Charvis; T. Chiarusi; M. Circella; H. Costantini; N. Cottini; P. Coyle; C. Curtil; M. P. Decowski; I....
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eye 56
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The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the detector. The large scattering length of light in the deep sea facilitates an angular resolution of a few tenths of a degree for neutrino energies exceeding 10 TeV. In order to achieve this optimal performance, the time calibration procedures should ensure a...
Source: http://arxiv.org/abs/1012.2204v1
81
81
Sep 19, 2013
09/13
by
ANTARES collaboration; J. A. Aguilar; I. Al Samarai; A. Albert; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J. -J. Aubert; R. Auer; E. Barbarito; B. Baret; S. Basa; M. Bazzotti; V. Bertin; S. Biagi; C. Bigongiari; M. Bou-Cabo; M. C. Bouwhuis; A. Brown; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Cârloganu; G. Carminati; J. Carr; B. Cassano; E. Castorina; V. Cavasinni; S. Cecchini; A. Ceres; Ph. Charvis; T. Chiarusi; N. Chon Sen; M. Circella; R....
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The AMADEUS (ANTARES Modules for the Acoustic Detection Under the Sea) system which is described in this article aims at the investigation of techniques for acoustic detection of neutrinos in the deep sea. It is integrated into the ANTARES neutrino telescope in the Mediterranean Sea. Its acoustic sensors, installed at water depths between 2050 and 2300 m, employ piezo-electric elements for the broad-band recording of signals with frequencies ranging up to 125 kHz. The typical sensitivity of the...
Source: http://arxiv.org/abs/1009.4179v3
69
69
Sep 23, 2013
09/13
by
ANTARES Collaboration; S. Adrián-Martínez; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Cârloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; H. Costantini; P. Coyle; C. Curtil; M. P. Decowski; I....
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eye 69
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Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric...
Source: http://arxiv.org/abs/1110.2656v2
60
60
Sep 21, 2013
09/13
by
ANTARES Collaboration; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; R. Auer; B. Baret; S. Basa; M. Bazzotti; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; M. C. Bouwhuis; A. M. Brown; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; N. Cottini; P. Coyle; C. Curtil;...
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A search for a diffuse flux of astrophysical muon neutrinos, using data collected by the ANTARES neutrino telescope is presented. A $(0.83\times 2\pi)$ sr sky was monitored for a total of 334 days of equivalent live time. The searched signal corresponds to an excess of events, produced by astrophysical sources, over the expected atmospheric neutrino background. The observed number of events is found compatible with the background expectation. Assuming an $E^{-2}$ flux spectrum, a 90% c.l. upper...
Source: http://arxiv.org/abs/1011.3772v1
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6.0
Jun 30, 2018
06/18
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S. Adrián-Martínez; A. Albert; M. André; M. Anghinolfi; G. Anton; M. Ardid; T. Astraatmadja; J. -J. Aubert; B. Baret; J. Barrios; S. Basa; E. Nezri; D. Palioselitis; G. E. Păvălaş; C. Perrina; P. Piattelli; V. Popa; T. Pradier; C. Racca; G. Riccobene; R. Richter; V. Bertin; C. Rivière; A. Robert; K. Roensch; A. Rostovtsev; M. Saldaña; D. F. E. Samtleben; A. Sánchez-Losa; M. Sanguineti; P. Sapienza; J. Schmid; S. Biagi; J. Schnabel; S. Schulte; F. Schüssler; T. Seitz; C. Sieger; A....
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Results are presented on a search for neutrino emission from a sample of six microquasars, based on the data collected by the ANTARES neutrino telescope between 2007 and 2010. By means of appropriate time cuts, the neutrino search has been restricted to the periods when the acceleration of relativistic jets was taking place at the microquasars under study. The time cuts have been chosen using the information from the X-ray telescopes RXTE/ASM and Swift/BAT, and, in one case, the gamma-ray...
Topics: High Energy Astrophysical Phenomena, Astrophysics
Source: http://arxiv.org/abs/1402.1600
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69
Sep 21, 2013
09/13
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J. A. Aguilar; I. Al. Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J. J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; P. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; P. Coyle; C. Curtil; M. P. Decowski; I. Dekeyser; A....
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The primary aim of ANTARES is neutrino astronomy with upward going muons created in charged current muon neutrino interactions in the detector and its surroundings. Downward going muons are background for neutrino searches. These muons are the decay products of cosmic-ray collisions in the Earth's atmosphere far above the detector. This paper presents a method to identify and count electromagnetic showers induced along atmospheric muon tracks with the ANTARES detector. The method is applied to...
Source: http://arxiv.org/abs/1106.0426v2
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84
Sep 22, 2013
09/13
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M. Ageron; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Cârloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; P. Coyle; C. Curtil; M. P. Decowski; I. Dekeyser;...
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The ANTARES telescope has the capability to detect neutrinos produced in astrophysical transient sources. Potential sources include gamma-ray bursts, core collapse supernovae, and flaring active galactic nuclei. To enhance the sensitivity of ANTARES to such sources, a new detection method based on coincident observations of neutrinos and optical signals has been developed. A fast online muon track reconstruction is used to trigger a network of small automatic optical telescopes. Such alerts are...
Source: http://arxiv.org/abs/1103.4477v1
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48
Sep 22, 2013
09/13
by
ANTARES Collaboration; S. Adrián-Martinez; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; L. Anton; S. Anvar; M. Ardid; T. Astraatmadjaote; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; B. Bouhou; M. C. Bouwhuis; J. Brünner; J. Busto; A. Capone; C. Cârloganu; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; F. Classen; R. Coniglione; L. Core; H. Costantini; P. Coyle; A. Creusot; C. Curtil; G. De Bonis; M. P. Decowski; I....
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A search for high-energy neutrinos coming from the direction of the Sun has been performed using the data recorded by the ANTARES neutrino telescope during 2007 and 2008. The neutrino selection criteria have been chosen to maximize the selection of possible signals produced by the self-annihilation of weakly interacting massive particles accumulated in the centre of the Sun with respect to the atmospheric background. After data unblinding, the number of neutrinos observed towards the Sun was...
Source: http://arxiv.org/abs/1302.6516v1
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128
Sep 23, 2013
09/13
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ANTARES collaboration; J. A. Aguilar; I. Al Samarai; A. Albert; M. Andre; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; R. Auer; B. Baret; S. Basa; M. Bazzotti; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; M. C. Bouwhuis; A. M. Brown; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; N. Cottini; P. Coyle; C. Curtil; M....
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An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. It is particularly well-suited for real time applications such as online monitoring and fast...
Source: http://arxiv.org/abs/1105.4116v1
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43
Sep 22, 2013
09/13
by
S. Adrián-Martínez; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. Bouwhuis; J. Brunner; J. Busto; A. Capone; C. Carloganu; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; L. Core; H. Costantini; P. Coyle; A. Creusot; C. Curtil; G. De Bonis; M. P. Decowski; I. Dekeyser; A....
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A search for neutrino-induced muons in correlation with a selection of 40 gamma-ray bursts that occurred in 2007 has been performed with the ANTARES neutrino telescope. During that period, the detector consisted of 5 detection lines. The ANTARES neutrino telescope is sensitive to TeV--PeV neutrinos that are predicted from gamma-ray bursts. No events were found in correlation with the prompt photon emission of the gamma-ray bursts and upper limits have been placed on the flux and fluence of...
Source: http://arxiv.org/abs/1302.6750v1
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56
Sep 20, 2013
09/13
by
ANTARES Collaboration; S. Adrián-Martínez; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; T. Astraatmadja; J. -J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; A. Capone; C. Carloganu; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; L. Core; H. Costantini; P. Coyle; A. Creusot; C. Curtil; G. De Bonis; M. P. Decowski; I. Dekeyser;...
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In this paper, a time integrated search for point sources of cosmic neutrinos is presented using the data collected from 2007 to 2010 by the ANTARES neutrino telescope. No statistically significant signal has been found and upper limits on the neutrino flux have been obtained. Assuming an $E_{\nu}^{-2}$ spectrum, these flux limits are at $1-10\times10^{-8}$ GeV cm$^{-2}$ s$^{-1}$ for declinations ranging from $-90^{\circ}$ to 40$^{\circ}$. Limits for specific models of RX J1713.7-3946 and Vela...
Source: http://arxiv.org/abs/1207.3105v2
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50
Sep 23, 2013
09/13
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S. Adrián-Martínez; M. Ageron; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J. -J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; P. Coyle; C. Curtil; G. De...
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The ANTARES neutrino telescope, located 40km off the coast of Toulon in the Mediterranean Sea at a mooring depth of about 2475m, consists of twelve detection lines equipped typically with 25 storeys. Every storey carries three optical modules that detect Cherenkov light induced by charged secondary particles (typically muons) coming from neutrino interactions. As these lines are flexible structures fixed to the sea bed and held taut by a buoy, sea currents cause the lines to move and the...
Source: http://arxiv.org/abs/1202.3894v3
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71
Sep 24, 2013
09/13
by
S. Adrián-Martínez; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; H. Costantini; P. Coyle; A. Creusto; C. Curtil; G. De Bonis; M. P....
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The ANTARES detector, completed in 2008, is the largest neutrino telescope in the Northern hemisphere. It is located at a depth of 2.5 km in the Mediterranean Sea, 40 km off the Toulon shore. The scientific scope of the experiment is very broad, being the search for astrophysical neutrinos the main goal. In this paper we collect the 22 contributions of the ANTARES collaboration to the 32nd International Cosmic Ray Conference (ICRC 2011). At this stage of the experiment the scientific output is...
Source: http://arxiv.org/abs/1112.0478v1
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59
Sep 23, 2013
09/13
by
S. Adrián-Martínez; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Cârloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; L. Core; H. Costantini; P. Coyle; A. Creusot; C. Curtil; G. De Bonis; M. P. Decowski; I. Dekeyser; A....
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The ANTARES telescope is well-suited to detect neutrinos produced in astrophysical transient sources as it can observe a full hemisphere of the sky at all times with a high duty cycle. Radio-loud active galactic nuclei with jets pointing almost directly towards the observer, the so-called blazars, are particularly attractive potential neutrino point sources. The all-sky monitor LAT on board the Fermi satellite probes the variability of any given gamma-ray bright blazar in the sky on time scales...
Source: http://arxiv.org/abs/1111.3473v1
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95
Sep 21, 2013
09/13
by
HAWC collaboration; A. U. Abeysekara; J. A. Aguilar; S. Aguilar; R. Alfaro; E. Almaraz; C. Álvarez; J. de D. Álvarez-Romero; M. Álvarez; R. Arceo; J. C. Arteaga-Velázquez; C. Badillo; A. Barber; B. M. Baughman; N. Bautista-Elivar; E. Belmont; E. Benítez; S. Y. BenZvi; D. Berley; A. Bernal; E. Bonamente; J. Braun; R. Caballero-Lopez; I. Cabrera; A. Carramiñana; L. Carrasco; M. Castillo; L. Chambers; R. Conde; P. Condreay; U. Cotti; J. Cotzomi; J. C. D'Olivo; E. de la Fuente; C. De León;...
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We present the sensitivity of HAWC to Gamma Ray Bursts (GRBs). HAWC is a very high-energy gamma-ray observatory currently under construction in Mexico at an altitude of 4100 m. It will observe atmospheric air showers via the water Cherenkov method. HAWC will consist of 300 large water tanks instrumented with 4 photomultipliers each. HAWC has two data acquisition (DAQ) systems. The main DAQ system reads out coincident signals in the tanks and reconstructs the direction and energy of individual...
Source: http://arxiv.org/abs/1108.6034v2
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71
Sep 21, 2013
09/13
by
Antares Collaboration; S. Adrián-Martínez; J. A. Aguilar; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; R. Coniglione; H. Costantini; P. Coyle; C....
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Results are presented of a search for cosmic sources of high energy neutrinos with the ANTARES neutrino telescope. The data were collected during 2007 and 2008 using detector configurations containing between 5 and 12 detection lines. The integrated live time of the analyzed data is 304 days. Muon tracks are reconstructed using a likelihood-based algorithm. Studies of the detector timing indicate a median angular resolution of 0.5 +/- 0.1 degrees. The neutrino flux sensitivity is 7.5 x 10-8 ~...
Source: http://arxiv.org/abs/1108.0292v1
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42
Sep 23, 2013
09/13
by
S. Adrián-Martínez; I. Al Samarai; A. Albert; M. André; M. Anghinolfi; G. Anton; S. Anvar; M. Ardid; A. C. Assis Jesus; T. Astraatmadja; J-J. Aubert; B. Baret; S. Basa; V. Bertin; S. Biagi; A. Bigi; C. Bigongiari; C. Bogazzi; M. Bou-Cabo; B. Bouhou; M. C. Bouwhuis; J. Brunner; J. Busto; F. Camarena; A. Capone; C. Carloganu; G. Carminati; J. Carr; S. Cecchini; Z. Charif; Ph. Charvis; T. Chiarusi; M. Circella; H. Costantini; P. Coyle; C. Curtil; G. De Bonis; M. P. Decowski; I. Dekeyser; A....
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The group velocity of light has been measured at eight different wavelengths between 385 nm and 532 nm in the Mediterranean Sea at a depth of about 2.2 km with the ANTARES optical beacon systems. A parametrisation of the dependence of the refractive index on wavelength based on the salinity, pressure and temperature of the sea water at the ANTARES site is in good agreement with these measurements.
Source: http://arxiv.org/abs/1110.5184v2
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54
Sep 19, 2013
09/13
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IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; J. Adams; J. A. Aguilar; M. Ahlers; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser; O. Botner; J. Braun; S. Buitink; M. Carson; D. Chirkin;...
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A measurement of the atmospheric muon neutrino energy spectrum from 100 GeV to 400 TeV was performed using a data sample of about 18,000 up-going atmospheric muon neutrino events in IceCube. Boosted decision trees were used for event selection to reject mis-reconstructed atmospheric muons and obtain a sample of up-going muon neutrino events. Background contamination in the final event sample is less than one percent. This is the first measurement of atmospheric neutrinos up to 400 TeV, and is...
Source: http://arxiv.org/abs/1010.3980v2
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50
Sep 22, 2013
09/13
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The IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; J. Adams; J. A. Aguilar; M. Ahlers; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser; O. Botner; J. Braun; A. M. Brown; S....
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The detection of acoustic signals from ultra-high energy neutrino interactions is a promising method to measure the tiny flux of cosmogenic neutrinos expected on Earth. The energy threshold for this process depends strongly on the absolute noise level in the target material. The South Pole Acoustic Test Setup (SPATS), deployed in the upper part of four boreholes of the IceCube Neutrino Observatory, has monitored the noise in Antarctic ice at the geographic South Pole for more than two years...
Source: http://arxiv.org/abs/1103.1216v2
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60
Sep 24, 2013
09/13
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IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser; O. Botner;...
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A search for an excess of muon-neutrinos from dark matter annihilations in the Sun has been performed with the AMANDA-II neutrino telescope using data collected in 812 days of livetime between 2001 and 2006 and 149 days of livetime collected with the AMANDA-II and the 40-string configuration of IceCube during 2008 and early 2009. No excess over the expected atmospheric neutrino background has been observed. We combine these results with the previously published IceCube limits obtained with data...
Source: http://arxiv.org/abs/1112.1840v2
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Sep 23, 2013
09/13
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IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; M. M. Allen; D. Altmann; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser; O....
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In this paper we report the first observation in the Southern hemisphere of an energy dependence in the Galactic cosmic ray anisotropy up to a few hundred TeV. This measurement was performed using cosmic ray induced muons recorded by the partially deployed IceCube observatory between May 2009 and May 2010. The data include a total of 33$\times 10^{9}$ muon events with a median angular resolution of $\sim3^{\circ}$ degrees. A sky map of the relative intensity in arrival direction over the...
Source: http://arxiv.org/abs/1109.1017v1
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57
Sep 21, 2013
09/13
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IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand D. Z. Besson; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser; O. Botner;...
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Gamma-Ray Bursts (GRBs) have been proposed as a leading candidate for acceleration of ultra high-energy cosmic rays, which would be accompanied by emission of TeV neutrinos produced in proton-photon interactions during acceleration in the GRB fireball. Two analyses using data from two years of the IceCube detector produced no evidence for this neutrino emission, placing strong constraints on models of neutrino and cosmic-ray production in these sources.
Source: http://arxiv.org/abs/1204.4219v2
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Sep 23, 2013
09/13
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IceCube Collaboration; R. Abbasi; Y. Abdou; T. Abu-Zayyad; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; D. Altmann; K. Andeen; J. Auffenberg; X. Bai; M. Baker; S. W. Barwick; V. Baum; R. Bay; J. L. Bazo Alba; K. Beattie; J. J. Beatty; S. Bechet; J. K. Becker; K. -H. Becker; M. Bell; M. L. Benabderrahmane; S. BenZvi; J. Berdermann; P. Berghaus; D. Berley; E. Bernardini; D. Bertrand; D. Z. Besson; D. Bindig; M. Bissok; E. Blaufuss; J. Blumenthal; D. J. Boersma; C. Bohm; D. Bose; S. Böser;...
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We report on a measurement of the cosmic ray energy spectrum with the IceTop air shower array, the surface component of the IceCube Neutrino Observatory at the South Pole. The data used in this analysis were taken between June and October, 2007, with 26 surface stations operational at that time, corresponding to about one third of the final array. The fiducial area used in this analysis was 0.122 km^2. The analysis investigated the energy spectrum from 1 to 100 PeV measured for three different...
Source: http://arxiv.org/abs/1202.3039v1
