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Sep 19, 2013
09/13

by
S. C. Chapman; A. W. Blain; R. J. Ivison; Ian Smail

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We present spectroscopic identifications for a sample of 55 submillimeter(submm)-selected `SCUBA' galaxies, lying at redshifts z=0.7 to 3.7, that were pinpointed in deep 1.4-GHz VLA radio maps. We describe their properties, especially the presence of active galactic nuclei (AGN) in the sample, and discuss the connection of the SCUBA galaxies and the formation of spheroidal components of galaxies, which requires knowledge of their masses and the timescales of their very luminous activity. For a...

Source: http://arxiv.org/abs/astro-ph/0304236v1

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Sep 23, 2013
09/13

by
C. S. Brinkworth; M. R. Burleigh; G. A. Wynn; T. R. Marsh

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GD356 is a magnetic white dwarf (B = 13MG) that uniquely displays weak resolved Zeeman triplets of Halpha and Hbeta in emission. As such, GD356 may be the only known white dwarf with some kind of chromosphere, although accretion from the interstellar medium or more exotic mechanisms cannot be ruled out. Here, we report the detection of low amplitude (+/-~0.2%) near-sinusoidal photometric (V-band) variability in GD356, with a period of 0.0803 days (~115 minutes). We interpret this as the...

Source: http://arxiv.org/abs/astro-ph/0312311v2

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Sep 20, 2013
09/13

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C. M. Martin; S. Guha; M. Chandrasekhar; H. R. Chandrasekhar; R. Guentner; P. Scanduicci de Freitas; U. Scherf

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We present studies of the photoluminescence (PL), absorption and Raman scattering from poly[2,7-(9,9'-bis(2-ethylhexyl))fluorene] under hydrostatic pressures of 0-100 kbar at room temperature. The well-defined PL and associated vibronics that are observed at atmospheric pressure change dramatically around 20 kbar in the bulk sample and at around 35 kbar for the thin film sample. Beyond these pressures the PL emission from the backbone is swamped by strong peaks due to aggregates and keto...

Source: http://arxiv.org/abs/cond-mat/0301275v1

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Sep 19, 2013
09/13

by
Andrzej Krolak; Massimo Tinto

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We estimate the upper frequency cutoff of the galactic white dwarf binaries gravitational wave background that will be observable by the LISA detector. This is done by including the modulation of the gravitational wave signal due the motion of the detector around the Sun. We find this frequency cutoff to be equal to $10^{-3.0}$Hz, a factor of 2 smaller than the values previously derived. This implies an increase in the number of resolvable signals in the LISA band by a factor of about 4. Our...

Source: http://arxiv.org/abs/gr-qc/0302013v1

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Sep 20, 2013
09/13

by
Sugumi Kanno; Misao Sasaki; Jiro Soda

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We propose a cosmological braneworld scenario in which two branes collide and emerge as reborn branes with signs of tensions opposite to the original tensions of respective branes. In this scenario, the branes are assumed to be inflating. However, the whole dynamics is different from the usual inflation due to the non-trivial dynamics of the radion field. Transforming the conformal frame to the Einstein frame, this born-again scenario resembles the pre-big-bang scenario. Thus our scenario has...

Source: http://arxiv.org/abs/gr-qc/0301126v1

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Sep 21, 2013
09/13

by
Sugumi Kanno; Jiro Soda

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In the Randall-Sundrum two-brane model (RS1), a Kerr black hole on the brane can be naturally identified with a section of rotating black string. To estimate Kaluza-Klein (KK) corrections on gravitational waves emitted by perturbed rotating black strings, we give the effective Teukolsky equation on the brane which is separable equation and hence numerically manageable. In this process, we derive the master equation for the electric part of the Weyl tensor $E_{\mu\nu}$ which would be also useful...

Source: http://arxiv.org/abs/gr-qc/0311074v2

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Sep 19, 2013
09/13

by
Kashif Alvi

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In a previous paper, a binary black hole four-metric was presented in a post-Newtonian corotating coordinate system valid only up to the holes' apparent horizons. In this paper, I define an ingoing coordinate transformation that extends this corotating coordinate system through the holes' horizons and into their interiors. The motivation for using ingoing coordinates is that numerical simulations of black holes require the computational grid to extend inside the horizons. The coordinate...

Source: http://arxiv.org/abs/gr-qc/0302061v1

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Sep 22, 2013
09/13

by
Rafal Idzi; Rachel Somerville; Casey Papovich; Henry C. Ferguson; Mauro Giavalisco; Claudia Kretchmer; Jennifer Lotz

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We investigate several fundamental properties of z ~ 4 Lyman-break galaxies by comparing observations with the predictions of a semi-analytic model based on the Cold Dark Matter theory of hierarchical structure formation. We use a sample of B_{435}-dropouts from the Great Observatories Origins Deep Survey, and complement the ACS optical B_{435}, V_{606}, i_{775}, and z_{850} data with the VLT ISAAC J, H, and K_{s} observations. We extract B_{435}-dropouts from our semi-analytic mock catalog...

Source: http://arxiv.org/abs/astro-ph/0308541v1

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Sep 18, 2013
09/13

by
D. F. Agterberg; Matthew J. W. Dodgson

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A reply to a comment by Mineev and Champel.

Source: http://arxiv.org/abs/cond-mat/0306533v1

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Jul 9, 2010
07/10

by
United States. National Archives and Records Administration

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"Records prepared for microfilming by volunteers of the Civil War Conservation Corps."

Topics: United States. Army. Infantry, United States. Army. Colored Infantry Regiment, 14th (1863-1865),...

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Sep 18, 2013
09/13

by
Shaaban Khalil; Veronica Sanz

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We address the question of whether the CP violating phase in the CKM mixing matrix can be the only source of all CP violation. We show that in supersymmetric models with new flavour structure beyond the Yukawa matrices, the CKM phase can generate the required baryon asymmetry and also accounts for all observed results in K and B systems, in particular $\epsilon'/\epsilon$ and the CP asymmetry of $B \to \phi K_S$.

Source: http://arxiv.org/abs/hep-ph/0306171v2

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Sep 22, 2013
09/13

by
Tatsuto Murayama

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We study an ill-posed linear inverse problem, where a binary sequence will be reproduced using a sparce matrix. According to the previous study, this model can theoretically provide an optimal compression scheme for an arbitrary distortion level, though the encoding procedure remains an NP-complete problem. In this paper, we focus on the consistency condition for a dynamics model of Markov-type to derive an iterative algorithm, following the steps of Thouless-Anderson-Palmer's. Numerical...

Source: http://arxiv.org/abs/cond-mat/0310440v2

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Sep 23, 2013
09/13

by
Michael Seidl

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For the two-dimensional electron gas, the exact high-density limit of the correlation energy is evaluated here numerically for all values of the spin polarization. The result is spin-resolved into $\uparrow\uparrow$, $\uparrow\downarrow$, and $\downarrow\downarrow$ contributions and parametrized analytically. Interaction-strength interpolation yields a simple model (LSD) for the correlation energy at finite densities.

Source: http://arxiv.org/abs/cond-mat/0312146v1

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Sep 19, 2013
09/13

by
Donovan Yves Rebbechi

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The following discourse is inspired by the works on hyperbolic groups of Epstein, and Neumann/Reeves. Epstein showed that geometrically finite hyperbolic groups are biautomatic. Neumann/Reeves showed that virtually central extensions of word hyperbolic groups are biautomatic. We prove the following generalisation: Theorem. Let H be a geometrically finite hyperbolic group. Let sigma in H^2(H) and suppose that sigma restricted to P is zero for any parabolic subgroup P of H. Then the extension of...

Source: http://arxiv.org/abs/math/0302245v1

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Sep 21, 2013
09/13

by
Kai Chen

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Let (T,M) be a complete local domain containing the integers. Let p1 \subseteq p2 \subseteq ... \subseteq pn be a chain of nonmaximal prime ideals T such that T_pn is a regular local ring. We construct a chain of excellent local domains An \subseteq A1 such that for each i, the completion of Ai is T, the generic formal fiber of Ai is local with maximal ideal pi, and if I is a nonzero ideal of Ai then Ai/I is complete. Consequently, if in addition T is a UFD, then we can construct a chain of...

Source: http://arxiv.org/abs/math/0311317v1

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Sep 19, 2013
09/13

by
Miklos Gyulassy; Ivan Vitev; Xin-Nian Wang; Ben-Wei Zhang

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We review recent finite opacity approaches (GLV, WW, WOGZ) to the computation of the induced gluon radiative energy loss and their application to the tomographic studies of the density evolution in ultra-relativistic nuclear collisions.

Source: http://arxiv.org/abs/nucl-th/0302077v2

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Sep 22, 2013
09/13

by
Howard M. Wiseman; Stephen D. Bartlett; John A. Vaccaro

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Entanglement is a resource central to quantum information (QI). In particular, entanglement shared between two distant parties allows them to do certain tasks that would otherwise be impossible. In this context, we study the effect on the available entanglement of physical restrictions on the local operations that can be performed by the two parties. We enforce these physical restrictions by generalized superselection rules (SSRs), which we define to be associated with a given group of physical...

Source: http://arxiv.org/abs/quant-ph/0309046v1

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Sep 17, 2013
09/13

by
J. B. Almeida; V. Lakshminarayanan

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By combining the definition of the Wigner distribution function (WDF) and the matrix method of optical system modeling, we can evaluate the transformation of the former in centered systems with great complexity. The effect of stops and lens diameter are also considered and are shown to be responsible for non-linear clipping of the resulting WDF in the case of coherent illumination and non-linear modulation of the WDF when the illumination is incoherent. As an example, the study of a single lens...

Source: http://arxiv.org/abs/physics/0305020v1

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Jul 23, 2011
07/11

by
NASA -- NASA Image Of The Day

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This true-color modis.gsfc.nasa.gov Moderate Resolution Imaging Spectroradiometer (MODIS) image from the aqua.nasa.gov Aqua satellite shows multiple large bushfires in southeast Australia on January 12, 2003. Fires are marked with red. This concentration of fires is located in the Great Dividing Range Mountains at the border of New South Wales (north) and Victoria (south). The northernmost fires are burning in the Kosciuszko National Park in southern New South Wales. Gusty winds and high...

Topics: What -- Aqua, Where -- Australia, Where -- Victoria, Where -- Bass Strait, Where -- Goddard Space...

Source: http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=10741

The Breast Cancer Training Program for Summer Undergraduates (BCTP-SU) has been established within the Eppley Cancer Research Institute of the University of Nebraska Medical Center (UNMC). The purpose of the BCTP-SU is to expand the Eppley's summer research program to add five additional undergraduates to train specifically in breast cancer research. Trainees participated in didactic and academic activities, including: 1) a 10 week, lab-intensive research project, mentored by one of the...

Topics: DTIC Archive, Cowan, Kenneth H, NEBRASKA UNIV MEDICAL CENTER OMAHA, *TRAINING, *MEDICAL RESEARCH,...

This study asks if occupational education bestows advantages or disadvantages on the students who pursue it, and how the educational experiences of occupational students compare to the experiences of students in academic programs. The authors used the Beginning Postsecondary Student Longitudinal Study of 1989-94 and 1995-98 to analyze educational outcomes of sub-baccalaureate occupational students. The findings suggest that occupational students pursuing an associate degree complete their...

Topics: ERIC Archive, Academic Degrees, Community Colleges, Job Training, Labor Force Development, Outcomes...

Demonstrate lightweight, self-detoxifying CB protective clothing. Objectives: Minimize mission degradation by reducing the effects of the use of individual protection on the warfighter's performance; Improve protection against current threats; Add protection to address all potential threats; Reduce logistics burden.

Topics: DTIC Archive, Ramey, Tony, NAVAL SURFACE WARFARE CENTER PANAMA CITY FL, *PROTECTIVE CLOTHING,...

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Feb 10, 2016
02/16

by
Jo Corliss

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49

Sep 19, 2013
09/13

by
Yunkyu Bang

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We propose a variational wave function for the ground state of the magnetic heavy fermion (HF) systems, in which both the Kondo and the RKKY interactions are variationally incorporated and the local f-orbital state exists as a linear combination of a full local moment state and a fully compensated state (mixed moment state). We describe the mechanism for the mixed moment ground state based on the large-N treatment of the Kondo lattice Hamiltonian added with RKKY interaction. With the mixed...

Source: http://arxiv.org/abs/cond-mat/0206247v2

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Sep 19, 2013
09/13

by
N. Maeshima; M. Hagiwara; Y. Narumi; K. Kindo; T. C. Kobayashi; K. Okunishi

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We present a theoretical and experimental study of a quasi-one-dimensional zigzag antiferromagnet (N_2H_5)CuCl_3, which can be viewed as weakly coupled Heisenberg chains with a frustrated interaction. We first discuss generic features of the magnetic properties of the zigzag spin chain between the nearly single chain case and the nearly double chain case, on the basis of the finite temperature density-matrix renormalization group (DMRG) calculations. We next show the experimental results for...

Source: http://arxiv.org/abs/cond-mat/0208373v2

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Sep 18, 2013
09/13

by
Paulsamy Muruganandam; Sadhan K Adhikari

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We suggest a pseudospectral method for solving the three-dimensional time-dependent Gross-Pitaevskii (GP) equation and use it to study the resonance dynamics of a trapped Bose-Einstein condensate induced by a periodic variation in the atomic scattering length. When the frequency of oscillation of the scattering length is an even multiple of one of the trapping frequencies along the $x$, $y$, or $z$ direction, the corresponding size of the condensate executes resonant oscillation. Using the...

Source: http://arxiv.org/abs/cond-mat/0210177v2

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Sep 18, 2013
09/13

by
M. Potthoff

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The self-energy-functional approach proposed recently is applied to the single-band Hubbard model at half-filling to study the Mott-Hubbard metal-insulator transition within the most simple but non-trivial approximation. This leads to a mean-field approach which is interesting conceptually: Trial self-energies from a two-site single-impurity Anderson model are used to evaluate an exact and general variational principle. While this restriction of the domain of the functional represents a strong...

Source: http://arxiv.org/abs/cond-mat/0306278v2

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Sep 22, 2013
09/13

by
O. Buisson; F. Balestro; J. P. Pekola; F. W. J. Hekking

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We propose a single shot quantum measurement to determine the state of a Josephson charge quantum bit (qubit). The qubit is a Cooper pair box (CPB) and the measuring device is a two junction superconducting quantum interference device (dc-SQUID). This coupled system exhibits a close analogy with a Rydberg atom in a high Q cavity, except that in the present device we benefit from the additional feature of escape from the supercurrent state by macroscopic quantum tunneling, which provides the...

Source: http://arxiv.org/abs/cond-mat/0308560v1

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Sep 22, 2013
09/13

by
A. V. Kats; Y. V. Bludov

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The paper deals with the theoretical investigation of plane, normally incident electromagnetic wave transmission through the flat metal film whose dielectric constant has small periodical sinusoidal modulation in one dimension parallel to the projection of the electric field onto the film surface. The dependencies of the film transmittancy on the parameters of the problem (frequency, modulation depth and absorption) are examined. It is shown that the film transmittancy increases considerably...

Source: http://arxiv.org/abs/cond-mat/0309557v1

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Sep 17, 2013
09/13

by
JeongHyeong Park

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Let (M,g) be a compact Einstein manifold with smooth boundary. We consider the spectrum of the p form valued Laplacian with respect to a suitable boundary condition. We show that certain geometric properties of the boundary may be spectrally characterized in terms of this data where we fix the Einstein constant.

Source: http://arxiv.org/abs/math/0305100v2

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Sep 22, 2013
09/13

by
M. V. McSwain; D. R. Gies; W. Huang; P. J. Wiita; D. W. Wingert; L. Kaper

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We present an investigation of new optical and ultraviolet spectra of the mass donor star in the massive X-ray binary LS 5039. The optical band spectral line strengths indicate that the atmosphere is N-rich and C-poor, and we classify the stellar spectrum as type ON6.5 V((f)). The N-strong and C-weak pattern is also found in the stellar wind P Cygni lines of N V 1240 and C IV 1550. We suggest that the N-enrichment may result from internal mixing if the O-star was born as a rapid rotator, or the...

Source: http://arxiv.org/abs/astro-ph/0307083v2

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Sep 20, 2013
09/13

by
B. Glenn Piner; Stephen C. Unwin; Ann E. Wehrle; Alma C. Zook; C. Megan Urry; Diane M. Gilmore

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We have calculated inverse-Compton Doppler factors for 3C 279 using the collection of VLBI data recently published by us, and the collection of multiwavelength spectra recently published by Hartman et al. From the Doppler factor and superluminal apparent speed, we then calculate the Lorentz factor and angle to the line-of-sight of the parsec-scale relativistic jet. We model the jet components as homogeneous spheres and the VLBI core as an unresolved inhomogeneous conical jet. The conical-jet...

Source: http://arxiv.org/abs/astro-ph/0301333v1

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Sep 19, 2013
09/13

by
The BABAR Collaboration; B. Aubert

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We present preliminary measurements of the B meson decays B+->etapi+, B+->etaK+, and B0->etaK0. The data were recorded with the BABAR detector at PEP II and correspond to 88.9 million BBbar pairs produced in e+e- annihilation through the Upsilon(4S) resonance. We find the branching fractions B(B+->etapi+) = (4.2 +1.0-0.9 +/- 0.3)x 10^-6 and B(B+->etaK+) = (2.8 +0.8-0.7 +/-0.2)x10^-6. We set a 90% CL upper limit of B(B0->etaK0) < 4.6x10^-6. The time-integrated charge...

Source: http://arxiv.org/abs/hep-ex/0303039v1

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Sep 22, 2013
09/13

by
K. -F. Chen; A. Bozek

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We present the first measurement of decay amplitudes in B -> phi K^* and measurements of branching fractions in B -> phi K^{(*)} decays based on 78.1 fb^{-1} of data recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e^+ e^- storage ring. The decay amplitudes for the different phi K^{*0} helicity states are measured from the angular distributions of final state particles in the transversity basis. The longitudinal and transverse complex amplitudes are |A_0|^2 = 0.43...

Source: http://arxiv.org/abs/hep-ex/0307014v2

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Sep 17, 2013
09/13

by
Pierre Van Mechelen

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Results obtained by the H1 and ZEUS Collaborations on jet production in photoproduction and deep-inelastic scattering are presented and compared to NLO QCD models.

Source: http://arxiv.org/abs/hep-ex/0305073v1

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Sep 19, 2013
09/13

by
Dongsheng Du; Junfeng Sun; Deshan Yang; Guohuai Zhu

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In this paper, we perform a global analysis of $B \to PP$ and $PV$ decays with the QCD factorization approach. It is encouraging to observe that the predictions of QCD factorization are in good agreement with experiment. The best fit $\gamma$ is around $79^\circ$. The penguin-to-tree ratio $|P_{\pi \pi}/T_{\pi \pi}|$ of $\pi^+ \pi^-$ decays is preferred to be larger than 0.3. We also show the confidence levels for some interesting channels: $B^0 \to \pi^0 \pi^0$, $K^+ K^-$ and $B^+ \to \omega...

Source: http://arxiv.org/abs/hep-ph/0209233v3

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Sep 18, 2013
09/13

by
HoSeong La

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The spontaneous symmetry breaking of a local chiral symmetry to its diagonal vector symmetry naturally realizes a complete geometrical structure more general than that of Yang-Mills (YM) theory, rather similar to that of gravity. A good example is the Quantum Chromodynamics (QCD) with respect to the Chiral Color model. Also, a new anomaly-free particle content for a Chiral Color model is introduced: the Chiral Color can be realized without introducing whole new generations of quarks and...

Source: http://arxiv.org/abs/hep-ph/0306223v1

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Sep 18, 2013
09/13

by
Yuri L. Dokshitzer

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The status of QCD phenomena and open problems are reviewed

Source: http://arxiv.org/abs/hep-ph/0306287v1

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Sep 22, 2013
09/13

by
H. Weigel; R. Alkofer; P. Watson

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We present a covariant approach to describe the low--lying scalar, pseudoscalar, vector and axialvector mesons as quark--antiquark bound states.This approach is based on an effective interaction modeling of the non--perturbative structure of the gluon propagator that enters the quark Schwinger--Dyson and meson Bethe--Salpeter equations. We extract the meson masses and compute the pion and kaon decay constants. We obtain a quantitatively correct description for pions, kaons and vector mesons...

Source: http://arxiv.org/abs/hep-ph/0307066v1

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Sep 22, 2013
09/13

by
Massimo Blasone; Joao Magueijo; Paulo Pires-Pacheco

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We use previous work on the Hilbert space for mixed fields to derive deformed dispersion relations for neutrino flavor states. We then discuss how these dispersion relations may be incorporated into frameworks encoding the breakdown of Lorentz invariance. We consider non-linear relativity schemes (of which doubly special relativity is an example), and also frameworks allowing for the existence of a preferred frame. In both cases we derive expressions for the spectrum and end-point of beta...

Source: http://arxiv.org/abs/hep-ph/0307205v1

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Sep 22, 2013
09/13

by
F. Huang; Z. Y. Zhang; Y. W. Yu; B. S. Zou

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The structure of the pentaquark state uudd-sbar is studied in the chiral SU(3) quark model as well as in the extended chiral SU(3) quark model, in which the vector meson exchanges are included. Four configurations of JP=1/2- and four of JP=1/2+ are considered. The results show that the isospin T=0 state is always the lowest one for both JP=1/2- and JP=1/2+ cases in various models. But the theoretical value of the lowest one is still about 200-300 MeV higher than the experimental mass of...

Source: http://arxiv.org/abs/hep-ph/0310040v1

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Sep 18, 2013
09/13

by
Shiping Feng

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Within the t-J model, the mechanism of superconductivity in doped cuprates is studied based on the partial charge-spin separation fermion-spin theory. It is shown that dressed holons interact occurring directly through the kinetic energy by exchanging dressed spinon excitations, leading to a net attractive force between dressed holons, then the electron Cooper pairs originating from the dressed holon pairing state are due to the charge-spin recombination, and their condensation reveals the...

Source: http://arxiv.org/abs/cond-mat/0306719v2

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Sep 22, 2013
09/13

by
Thomas DeGrand

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I calculate the kaon B-parameter with a lattice simulation in quenched approximation. The lattice simulation uses an action possessing exact lattice chiral symmetry, an overlap action. Computations are performed at two lattice spacings, about 0.13 and 0.09 fm (parameterized by Wilson gauge action couplings beta=5.9 and 6.1) with nearly the same physical volumes and quark masses. I describe particular potential difficulties which arise due to the use of such a lattice action in finite volume. My...

Source: http://arxiv.org/abs/hep-lat/0309026v1

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Sep 19, 2013
09/13

by
Chris Beasley; Edward Witten

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We reconsider the question of which Calabi-Yau compactifications of the heterotic string are stable under world-sheet instanton corrections to the effective space-time superpotential. For instance, compactifications described by (0,2) linear sigma models are believed to be stable, suggesting a remarkable cancellation among the instanton effects in these theories. Here, we show that this cancellation follows directly from a residue theorem, whose proof relies only upon the right-moving...

Source: http://arxiv.org/abs/hep-th/0304115v1

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Sep 22, 2013
09/13

by
Ji Young Han; Won Tae Kim; Hee Ju Yee

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We present an exactly soluble charged wormhole model in two dimensions by adding infalling chiral fermions on the static wormhole. The infalling energy due to the infalling charged matter requires the classical back reaction of the geometry, which is solved by taking into account of the nontrivial nonchiral exotic energy. Finally, we obtain the exact expression for the size of the throat depending on the total amount of the infalling net energy and discuss the interesting transition from the...

Source: http://arxiv.org/abs/hep-th/0308002v1

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Sep 18, 2013
09/13

by
T. Barnes

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In this short review we summarize experimental information and theoretical results for the low-energy dissociation cross sections of charmonia by light hadrons. These cross sections are required for the simulation of charmonium absorption through collisions with comovers in heavy ion collisions, which competes with quark-gluon plasma production as a charmonium-suppression mechanism. If the cross sections are sufficiently large these dissociation reactions may be misinterpreted as an effect of...

Source: http://arxiv.org/abs/nucl-th/0306031v1

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Sep 22, 2013
09/13

by
Rudolph C. Hwa; C. B. Yang

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The phenomenon of centrality scaling in the high-\pt spectra of $\pi^0$ produced in Au-Au collisions at $\sqrt s=200$ GeV is examined in the framework of relating fractional energy loss to fractional centrality increase. A new scaling behavior is found where the scaling variable is given a power-law dependence on $N_{\rm part}$. The exponent $\gamma$ specifies the fractional proportionality relationship between energy loss and centrality, and is a phenomenologically determined number that...

Source: http://arxiv.org/abs/nucl-th/0307112v1

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Sep 22, 2013
09/13

by
H. Ganev; V. P. Garistov; A. I. Georgieva

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In the framework of the symplectic extension of the Interacting Vector Boson Model (IVBM) a good description of the first excited positive and negative parity bands of the nuclei in the rare earth and the actinide region is achieved. The bands investigated in the model are extended to very high angular momenta as a result of their consideration as "yrast" bands with respect to the symplectic classification of the basis states. The analysis of the eigenvalues of the model Hamiltonian...

Source: http://arxiv.org/abs/nucl-th/0309067v1

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Sep 23, 2013
09/13

by
N. Kaiser

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We extend a recent calculation of the nuclear energy density functional in the systematic framework of chiral perturbation theory by computing the isovector spin-orbit terms: $(\vec \nabla \rho_p- \vec \nabla \rho_n)\cdot(\vec J_p-\vec J_n) G_{so}(k_f)+ (\vec J_p-\vec J_n)^2 G_J(k_f)$. The calculation includes the one-pion exchange Fock diagram and the iterated one-pion exchange Hartree and Fock diagrams. From these few leading order contributions in the small momentum expansion one obtains...

Source: http://arxiv.org/abs/nucl-th/0312059v1

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Sep 18, 2013
09/13

by
A. Geisler; F. Homann; H. -J. Schmidt

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We investigate general properties of spatial 1-dimensional bright photorefractive solitons and suggest various analytical approximations for the soliton profile and the half width, both depending on an intensity parameter r.

Source: http://arxiv.org/abs/physics/0306132v1