7
7.0
Jun 29, 2018
06/18
by
IceCube Collaboration; M. G. Aartsen; K. Abraham; M. Ackermann; J. Adams; J. A. Aguilar; M. Ahlers; M. Ahrens; D. Altmann; T. Anderson; I. Ansseau; A. Goldschmidt; G. Golup; J. G. Gonzalez; D. Góra; D. Grant; Z. Griffith; A. Groß; C. Ha; C. Haack; A. Haj Ismail; G. Anton; A. Hallgren; F. Halzen; E. Hansen; B. Hansmann; K. Hanson; D. Hebecker; D. Heereman; K. Helbing; R. Hellauer; S. Hickford; M. Archinger; J. Hignight; G. C. Hill; K. D. Hoffman; R. Hoffmann; K. Holzapfel; A. Homeier; K....
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We present an improved event-level likelihood formalism for including neutrino telescope data in global fits to new physics. We derive limits on spin-dependent dark matter-proton scattering by employing the new formalism in a re-analysis of data from the 79-string IceCube search for dark matter annihilation in the Sun, including explicit energy information for each event. The new analysis excludes a number of models in the weak-scale minimal supersymmetric standard model (MSSM) for the first...
Topics: Astrophysics, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics, High...
Source: http://arxiv.org/abs/1601.00653
10
10.0
Jun 30, 2018
06/18
by
J. A. Aguilar-Saavedra; S. Amor dos Santos
texts
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We define three orthogonal axes to investigate the top quark polarization in the $t$-channel single top process. We provide expressions for the polarization in these axes in terms of anomalous $Wtb$ couplings. It is found that the polarizations in the two axes orthogonal to the spectator quark axis are very sensitive to an anomalous coupling involving a $\bar b_L \sigma^{\mu \nu} t_R$ dipole term. In particular, an asymmetry based on the polarization normal to the production plane is more...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1404.1585
5
5.0
Jun 29, 2018
06/18
by
M. L. Mangano; G. Zanderighi; J. A. Aguilar Saavedra; S. Alekhin; S. Badger; C. W. Bauer; T. Becher; V. Bertone; M. Bonvini; S. Boselli; E. Bothmann; R. Boughezal; M. Cacciari; C. M. Carloni Calame; F. Caola; J. M. Campbell; S. Carrazza; M. Chiesa; L. Cieri; F. Cimaglia; F. Febres Cordero; P. Ferrarese; D. D'Enterria; G. Ferrera; X. Garcia i Tormo; M. V. Garzelli; E. Germann; V. Hirschi; T. Han; H. Ita; B. Jäger; S. Kallweit; A. Karlberg; S. Kuttimalai; F. Krauss; A. J. Larkoski; J. Lindert;...
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This report summarises the properties of Standard Model processes at the 100 TeV pp collider. We document the production rates and typical distributions for a number of benchmark Standard Model processes, and discuss new dynamical phenomena arising at the highest energies available at this collider. We discuss the intrinsic physics interest in the measurement of these Standard Model processes, as well as their role as backgrounds for New Physics searches.
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1607.01831
4
4.0
Jun 30, 2018
06/18
by
J. A. Aguilar-Saavedra; C. Degrande; S. Khatibi
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We discuss the effect of heavy new physics, parameterised in terms of four-fermion operators, in the polarisation of single top (anti-)quarks in the $t$-channel process at the LHC. It is found that for operators involving a right-handed top quark field the relative effect on the longitudinal polarisation is twice larger than the relative effect on the total cross section. This enhanced dependence on possible four-fermion contributions makes the polarisation measurements specially interesting,...
Topics: High Energy Physics - Experiment, High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1701.05900
4
4.0
Jun 29, 2018
06/18
by
J. A. Aguilar-Saavedra; J. H. Collins; S. Lombardo
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We show that the relatively small but coincident excesses observed around 2 TeV in the ATLAS Run 1 and Run 2 hadronic diboson searches --- when a cut on the number of tracks in the fat jets is not applied --- and the null results of all remaining high-mass diboson searches are compatible with the decay of a triboson resonance $R$ into $WZ$ plus an extra particle $X$. These decays can take place via new neutral ($Y^0$) or charged ($Y^\pm$) particles, namely $R \to Y^0 \, W$, with $Y^0 \to Z X$,...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1607.08911
