Date: Fri, 28 Sep 12 00:09:56 GMT Subject: nucl-th daily 9 new + 6 crosses received by eprepget ------------------------------------------------------------------------------ ------------------------------------------------------------------------------ Send any comments regarding submissions directly to submitter. ------------------------------------------------------------------------------ Archives at http://arxiv.org/ To unsubscribe, e-mail To: nucl-th@arXiv.org, Subject: cancel ------------------------------------------------------------------------------ received by eprepget from Wed 26 Sep 12 20:00:00 GMT to Thu 27 Sep 12 20:00:00 GMT ------------------------------------------------------------------------------ \\ arXiv:1209.6074 Date: Wed, 26 Sep 2012 20:40:32 GMT (2058kb) Title: Energy Density Functional analysis of shape evolution in N=28 isotones Authors: Z. P. Li, J. M. Yao, D. Vretenar, T. Niksic, H. Chen, and J. Meng Categories: nucl-th Comments: 31 pages, 11 figures Journal-ref: Phys. Rev. C 84, 054304 (2011) DOI: 10.1103/PhysRevC.84.054304 \\ The structure of low-energy collective states in proton-deficient N=28 isotones is analyzed using structure models based on the relativistic energy density functional DD-PC1. The relativistic Hartree-Bogoliubov model for triaxial nuclei is used to calculate binding energy maps in the $\beta$-$\gamma$ plane. The evolution of neutron and proton single-particle levels with quadrupole deformation, and the occurrence of gaps around the Fermi surface, provide a simple microscopic interpretation of the onset of deformation and shape coexistence. Starting from self-consistent constrained energy surfaces calculated with the functional DD-PC1, a collective Hamiltonian for quadrupole vibrations and rotations is employed in the analysis of excitation spectra and transition rates of $^{46}$Ar, $^{44}$S, and $^{42}$Si. The results are compared to available data, and previous studies based either on the mean-field approach or large-scale shell-model calculations. The present study is particularly focused on $^{44}$S, for which data have recently been reported that indicate pronounced shape coexistence. \\ ( http://arxiv.org/abs/1209.6074 , 2058kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6075 Date: Wed, 26 Sep 2012 20:47:22 GMT (57kb) Title: An efficient method for computing the Thouless-Valatin inertia parameters Authors: Z. P. Li, T. Niksic, P. Ring, D. Vretenar, J. M. Yao, and J. Meng Categories: nucl-th Comments: 16 pages, 3 figures Journal-ref: Phys. Rev. C 86, 034334 (2012) DOI: 10.1103/PhysRevC.86.034334 \\ Starting from the adiabatic time-dependent Hartree-Fock approximation (ATDHF), we propose an efficient method to calculate the Thouless-Valatin moments of inertia for the nuclear system. The method is based on the rapid convergence of the expansion of the inertia matrix. The accuracy of the proposed method is verified in the rotational case by comparing the results with the exact Thouless-Valatin moments of inertia calculated using the self-consistent cranking model. The proposed method is computationally much more efficient than the full ATDHF calculation, yet it retains a high accuracy of the order of 1%. \\ ( http://arxiv.org/abs/1209.6075 , 57kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6076 Date: Wed, 26 Sep 2012 20:57:37 GMT (83kb) Title: Enhanced collectivity in neutron-deficient Sn isotopes in energy functional based collective Hamiltonian Authors: Z. P. Li, C. Y. Li, J. Xiang, J. M. Yao, and J. Meng Categories: nucl-th Comments: 5 pages, 4 figures, accepted for publication in Physics Letters B \\ The low-lying collective states in Sn isotopes are studied by a five-dimensional collective Hamiltonian with parameters determined from the triaxial relativistic mean-field calculations using the PC-PK1 energy density functional. The systematics for both the excitation energies of $2^+_1$ states and $B(E2;0^+_1\to 2^+_1)$ values are reproduced rather well, in particular, the enhanced E2 transitions in the neutron-deficient Sn isotopes with N<66. We show that the gradual degeneracy of neutron levels 1g7/2 and 2d5/2 around the Fermi surface leads to the increase of level density and consequently the enhanced paring correlations from N=66 to 58. It provokes a large quadrupole shape fluctuation around the spherical shape, and leads to an enhanced collectivity in the isotopes around N=58. \\ ( http://arxiv.org/abs/1209.6076 , 83kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6142 Date: Thu, 27 Sep 2012 07:18:46 GMT (2146kb) Title: Fission Dynamics of Compound Nuclei Authors: Yoritaka Iwata, Sophia Heinz Categories: nucl-th nucl-ex Comments: To appear in CERN Rep \\ Collisions between $^{248}$Cm and $^{48}$Ca are systematically investigated by time-dependent density functional calculations with evaporation prescription. Depending on the incident energy and impact parameter, fusion, deep-inelastic and quasi-fission events are expected to appear. In this paper, possible fission dynamics of compound nuclei is presented. \\ ( http://arxiv.org/abs/1209.6142 , 2146kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6146 Date: Thu, 27 Sep 2012 07:32:59 GMT (51kb) Title: Effects of phonon-phonon coupling on properties of pygmy resonance in $^{124-132}$Sn Authors: N.N. Arsenyev, A.P. Severyukhin, V.V. Voronov, Nguyen Van Giai Categories: nucl-th Comments: 4 pages, 1 figure, proceedings of International Conference on Nuclear Structure and Related Topics (NSRT12), July 2-7 2012, JINR, Dubna, Russia \\ Starting from an effective Skyrme interaction we study effects of phonon-phonon coupling on the low-energy electric dipole response in $^{124-132}$Sn. The QRPA calculations are performed within a finite rank separable approximation. The inclusion of two-phonon configurations gives a considerable contribution to low-lying strength. Comparison with available experimental data shows a reasonable agreement for the low-energy $E1$ strength distribution. \\ ( http://arxiv.org/abs/1209.6146 , 51kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6160 Date: Thu, 27 Sep 2012 08:44:30 GMT (91kb) Title: Existence of hyperons in the pulsar PSRJ1614-2230 Authors: A. Sulaksono and B. K. Agrawal Categories: nucl-th astro-ph.HE Comments: 24 page including 8 figures, Nuclear Phys. A (in press) \\ The possibility of existence of hyperons in the recently measured $2M_\odot$ pulsar PSRJ1614-2230 is explored using a diverse set of nuclear equations of state calculated within the relativistic mean-field models. Our results indicate that the nuclear equations of state compatible with heavy-ion data allow the hyperons to exist in the PSRJ1614-2230 only for significantly larger values for the meson-hyperon coupling strengths. The maximum mass configurations for these cases contain sizable hyperon fractions ($\sim 60%$) and yet masquared their counterpart composed of only nucleonic matter. \\ ( http://arxiv.org/abs/1209.6160 , 91kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6208 Date: Thu, 27 Sep 2012 12:38:46 GMT (378kb,D) Title: Antikaon-nucleon dynamics and its application to few-body systems Authors: Tetsuo Hyodo (Tokyo Inst. Tech.) Categories: nucl-th hep-ph Comments: 9 pages, 3 figures, talk give at 20th International IUPAP Conference on Few-Body Problems in Physics (FB20), 20-25 August 2011, Fukuoka, Japan \\ We overview the recent progress in the investigation of the antikaon dynamics with single nucleon and with few-body nuclei, based on chiral SU(3) symmetry. We first show how the Lambda(1405) resonance emerges from the coupled-channel Kbar N-pi Sigma interaction. Next, we present the construction of an up-to-date Kbar N interaction in response to the recent measurement of kaonic hydrogen. Finally, we discuss the possibility of the antikaon bound states in nuclei from the perspective of few-body physics. \\ ( http://arxiv.org/abs/1209.6208 , 378kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6269 Date: Thu, 27 Sep 2012 16:18:14 GMT (62kb,D) Title: Effective interactions in the delta-shells potential Authors: R. Navarro Perez, J. E. Amaro, E. Ruiz Arriola Categories: nucl-th Comments: 4 page, 1 figure, Presented by R.N.P. at the 20th International IUPAP Conference on Few-Body Problems in Physics, 20 - 25 August, 2012, Fukuoka, Japan \\ We determine two-body Skyrme force parameters from a Nucleon-Nucleon interaction as a function of the maximal momentum fitting NN scattering data. We find general agreement with Vlowk interactions based on high quality potentials. \\ ( http://arxiv.org/abs/1209.6269 , 62kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6330 Date: Thu, 27 Sep 2012 18:58:31 GMT (44kb) Title: Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics Authors: Charles Gale, Sangyong Jeon, Bjoern Schenke, Prithwish Tribedy and Raju Venugopalan Categories: nucl-th hep-ph nucl-ex Comments: 5 pages, 9 figures \\ Anisotropic flow coefficients v_1-v_5 in heavy ion collisions are computed by combining a classical Yang-Mills description of the early time glasma flow with the subsequent relativistic viscous hydrodynamic evolution of matter through the quark-gluon plasma and hadron gas phases. The glasma dynamics, as realized in the IP-Glasma model, takes into account event-by-event geometric fluctuations in nucleon positions and intrinsic sub-nucleon scale color charge fluctuations; the pre-equilibrium flow of matter is then matched to the MUSIC algorithm describing viscous hydrodynamic flow and particle production at freeze-out. The IP-Glasma+MUSIC model describes well both transverse momentum dependent and integrated v_n data measured at the Large Hadron Collider (LHC) and the Relativistic Heavy Ion Collider (RHIC). The model also reproduces the event-by-event distributions of v_2, v_3 and v_4 measured by the ATLAS collaboration. The implications of our results for better understanding of the dynamics of the glasma as well as for the extraction of transport properties of the quark-gluon plasma are outlined. \\ ( http://arxiv.org/abs/1209.6330 , 44kb) %-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%-%- ------------------------------------------------------------------------------ \\ arXiv:1209.6093 (*cross-listing*) Date: Wed, 26 Sep 2012 23:04:52 GMT (295kb,D) Title: The Thomas-Fermi Quark Model: Non-Relativistic Aspects Authors: Quan Liu and Walter Wilcox Categories: hep-ph hep-lat nucl-th Comments: 21 pages, 3 tables and 1 figure Report-no: BU-HEPP-12-03 \\ Non-relativistic aspects of the Thomas-Fermi statistical quark model are developed. A review is given and our modified approach to spin in the model is explained. Our results are limited so far to two inequivalent simultaneous wave functions which can apply to multiple degenerate flavors. An explicit spin interaction is introduced, which requires the introduction of a generalized spin "flavor". Although the model is designed to be most reliable for many-quark states, we find surprisingly that it may be used to fit the low energy spectrum of octet and decouplet baryons. The low energy fit allows us to investigate the six-quark doubly strange H-dibaryon state, possible 6 quark nucleon-nucleon resonances and flavor symmetric strange states of higher quark content. \\ ( http://arxiv.org/abs/1209.6093 , 295kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6136 (*cross-listing*) Date: Thu, 27 Sep 2012 07:05:46 GMT (42kb,D) Title: Description of Strongly Interacting Matter in A Hybrid Model Authors: P. K. Srivastava and C. P. Singh Categories: hep-ph nucl-th Comments: 16 pages, 9 figures, 1 table \\ Search for a proper and realistic equation of state (EOS) for strongly interacting matter used in the study of the QCD phase diagram still appears as a challenging problem. Recently, we constructed a hybrid model description for the quark gluon plasma (QGP) as well as hadron gas (HG) phases where we used an excluded volume model for HG and a thermodynamically consistent quasiparticle model for the QGP phase. The hybrid model suitably describes the recent lattice results of various thermodynamical as well as transport properties of the QCD matter at zero baryon chemical potential ($\mu_{B}$). In this paper, we extend our investigations further in obtaining the properties of QCD matter at finite value of $\mu_{B}$ and compare our results with the most recent results of lattice QCD calculation. Finally we demonstrate the existence of two different limiting energy regimes and propose that the connection point of these two limiting regimes would foretell the existence of critical point (CP) of the deconfining phase transition from HG to QGP in our hybrid model. \\ ( http://arxiv.org/abs/1209.6136 , 42kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6137 (*cross-listing*) Date: Thu, 27 Sep 2012 07:08:11 GMT (944kb) Title: Domain Growth in Chiral Phase Transitions: Inertial Dynamics Authors: Awaneesh Singh, Sanjay Puri and Hiranmaya Mishra Categories: hep-ph nucl-th Comments: 31 pages with 9 figures \\ We investigate the kinetics of phase transition for chiral symmetry breaking after a collision with high-energy heavy ions. We use a Langevin description for domain growth kinetics in the chiral phase transition. The Langevin equation of motion for the order parameter field includes dissipation and the {\it inertial term} with a Gaussian random force. We study the far-from-equilibrium ordering dynamics subsequent to a quench from the massless quark phase to the massive quark phase and discuss the effect of dissipation on the dynamic magnification. After a discussion on the growth of the bubble, we introduce the assumption of scale and to show how a dynamic correlation length emerges. We find a simple length scale corresponding to the Allen-Chan (AC) growth law i.e., $L(t) \sim t^{1/2}$. \\ ( http://arxiv.org/abs/1209.6137 , 944kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6168 (*cross-listing*) Date: Thu, 27 Sep 2012 09:07:40 GMT (13kb) Title: Neutron skins of $^{208}$Pb and $^{48}$Ca from pionic probes Authors: E.Friedman Categories: nucl-ex nucl-th Comments: 9 pages, 3 figures, to be published in Nuclear Physics A \\ The neutron skin of $^{208}$Pb has received considerable attention in recent years. A variety of strongly-interacting probes depict a rather consistent picture but pionic probes have not been referred to in this context. We present here neutron-skin values from pionic atoms and from total reaction cross sections of $\pi ^+$ between 0.7 and 2 GeV/c which fit well into the picture. In addition we show that a neutron skin for $^{48}$Ca can be obtained from existing data on pionic atoms and the result agrees with pion scattering experiments and with the scattering of $\alpha $ particles. \\ ( http://arxiv.org/abs/1209.6168 , 13kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6207 (*cross-listing*) Date: Thu, 27 Sep 2012 12:38:34 GMT (76kb,D) Title: Production of doubly charmed tetraquarks with exotic color configurations in electron-positron collisions Authors: Tetsuo Hyodo, Yan-Rui Liu, Makoto Oka, Kazutaka Sudoh, Shigehiro Yasui Categories: hep-ph nucl-th Comments: 6 pages, 3 figures \\ Structure and production of doubly charmed tetraquarks T_cc (cc ubar dbar) are studied from the viewpoint of color configurations. Based on the diquark correlation, the tetraquark T_cc with I(JP)=0(1+) is considered to be stable against strong decay. We discuss that the mixing probability of color antitriplet and sextet cc components in T_cc is suppressed by 1/m_c^2, so the two configurations are separately realized in the heavy quark limit. Utilizing the nonrelativistic QCD framework, we evaluate the production cross sections of T_cc in electron-positron collisions. The momentum dependence of the cross section of color antitriplet is found to be different from that of sextet, which can be used to discriminate the color structure of the T_cc states in experimental measurements. \\ ( http://arxiv.org/abs/1209.6207 , 76kb) ------------------------------------------------------------------------------ \\ arXiv:1209.6306 (*cross-listing*) Date: Thu, 27 Sep 2012 17:55:16 GMT (255kb) Title: The electric dipole moment of the deuteron from the QCD $\theta$-term Authors: J. Bsaisou, C. Hanhart, S. Liebig, U.-G. Mei{\ss}ner, A. Nogga and A. Wirzba Categories: hep-ph nucl-th Comments: 13 pages, 5 figures, EPJ style \\ The two-nucleon contributions to the electric dipole moment (EDM) of the deuteron, induced by the QCD $\theta$-term, are calculated in the framework of effective field theory up-to-and-including next-to-next-to-leading order. In particular we find for the difference of the deuteron EDM and the sum of proton and neutron EDM induced by the QCD $\theta$-term a value of $(-6 \pm 4)\bar\theta \times 10^{-4} e$ fm. The by far dominant uncertainty comes from the CP- and isospin-violating $\pi NN$ coupling constant. Matrix elements are evaluated with an accuracy of better than 10%. \\ ( http://arxiv.org/abs/1209.6306 , 255kb) %%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%%--%% ------------------------------------------------------------------------------ \\ arXiv:1201.3352 (*cross-listing*) replaced with revised version Thu, 27 Sep 2012 15:54:52 GMT (2718kb) Title: Fluctuations and Correlations of Conserved Charges in the $(2+1)$ Polyakov Quark Meson Model Authors: Sandeep Chatterjee and Kirtimaan A. Mohan Categories: hep-ph hep-lat nucl-th Comments: modified text, version accepted for publication in PRD \\ ( http://arxiv.org/abs/1201.3352 , 2718kb) ------------------------------------------------------------------------------ \\ arXiv:1204.2790 (*cross-listing*) replaced with revised version Thu, 27 Sep 2012 19:55:25 GMT (36kb) Title: The Heavy Quark Spin Symmetry Partners of the X(3872) Authors: J. Nieves, M. Pavon Valderrama Categories: hep-ph nucl-th Comments: 18 pages; final version accepted for publication Journal-ref: Phys. Rev. D86, 056004 (2012) DOI: 10.1103/PhysRevD.86.056004 \\ ( http://arxiv.org/abs/1204.2790 , 36kb) ------------------------------------------------------------------------------ \\ arXiv:1205.3860 (*cross-listing*) replaced with revised version Thu, 27 Sep 2012 12:35:09 GMT (38kb) Title: Components of the dilepton continuum in Pb+Pb collisions at $\sqrt{s_{_{NN}}} = 2.76 $ TeV Authors: V. Kumar, P. Shukla and R. Vogt Categories: hep-ph nucl-th Comments: 18 pages, 9 figures \\ ( http://arxiv.org/abs/1205.3860 , 38kb) ------------------------------------------------------------------------------ \\ arXiv:1206.3812 replaced with revised version Thu, 27 Sep 2012 02:30:43 GMT (74kb) Title: Neutrinoproduction of Photons and Pions From Nucleons in a Chiral Effective Field Theory for Nuclei Authors: Brian D. Serot and Xilin Zhang Categories: nucl-th hep-ex nucl-ex Comments: 21 pages, 7 figures, typos corrected. arXiv admin note: substantial text overlap with arXiv:1011.5913 Journal-ref: Phys. Rev. C 86, 015501 (2012) DOI: 10.1103/PhysRevC.86.015501 \\ ( http://arxiv.org/abs/1206.3812 , 74kb) ------------------------------------------------------------------------------ \\ arXiv:1206.6324 replaced with revised version Thu, 27 Sep 2012 03:54:38 GMT (96kb) Title: Incoherent Neutrinoproduction of Photons and Pions in a Chiral Effective Field Theory for Nuclei Authors: Xilin Zhang and Brian D. Serot Categories: nucl-th hep-ex nucl-ex Comments: 32 pages, 12 figures, and 3 tables, typos corrected Journal-ref: Phys. Rev. C 86, 035502 (2012) DOI: 10.1103/PhysRevC.86.035502 \\ ( http://arxiv.org/abs/1206.6324 , 96kb) ------------------------------------------------------------------------------ \\ arXiv:1207.2357 replaced with revised version Thu, 27 Sep 2012 12:34:17 GMT (47kb) Title: Low-energy fusion caused by an interference Authors: B. Ivlev Categories: nucl-th \\ ( http://arxiv.org/abs/1207.2357 , 47kb) ------------------------------------------------------------------------------ \\ arXiv:1208.0390 (*cross-listing*) replaced with revised version Wed, 26 Sep 2012 21:35:02 GMT (87kb) Title: Magnetic catalysis of a charged Bose-Einstein condensate Authors: Alejandro Ayala, M. Loewe, Juan Cristobal Rojas, C. Villavicencio Categories: hep-ph astro-ph.HE cond-mat.quant-gas nucl-th Comments: 11 pages, 4 figures. To be published in Phys. Rev. D \\ ( http://arxiv.org/abs/1208.0390 , 87kb) ------------------------------------------------------------------------------ \\ arXiv:1208.0897 replaced with revised version Thu, 27 Sep 2012 06:26:39 GMT (1305kb,D) Title: Constraining the initial temperature and shear viscosity in a hybrid hydrodynamic model of $\sqrt{s_{NN}}$=200 GeV Au+Au collisions using pion spectra, elliptic flow, and femtoscopic radii Authors: R. A. Soltz, I. Garishvili, M. Cheng, B. Abelev, A. Glenn, J. Newby, L. A. Linden Levy, S. Pratt Categories: nucl-th nucl-ex Comments: 20 pages, 18 figures, v2 includes improvements to clarity to figures and additional systematic study \\ ( http://arxiv.org/abs/1208.0897 , 1305kb) ------------------------------------------------------------------------------ \\ arXiv:1209.3468 (*cross-listing*) replaced with revised version Thu, 27 Sep 2012 17:12:45 GMT (255kb,D) Title: Lattice Gauge Theory and the Origin of Mass Authors: Andreas S. Kronfeld Categories: physics.hist-ph hep-lat hep-ph hep-th nucl-th Comments: prepared for "100 Years of Subatomic Physics," edited by Ernest Henley and Stephen Ellis. Submitted version with typos corrected and refs added. 26 pp., 6 figures Report-no: FERMILAB-PUB-12-513-T \\ ( http://arxiv.org/abs/1209.3468 , 255kb) %%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%---%%%--- For subscribe options to combined physics archives, e-mail To: physics@arXiv.org, Subject: subscribe ----------------------------------------------------------------------------- For help on viewing and making submissions, see http://arXiv.org/help/ For a list of archive mirror sites, see http://arXiv.org/servers.html ----------------------------------------------------------------------------- Third-party submissions cause excessive problems. Author self-submissions are exceedingly preferred. E-mail submissions have been discontinued in favor of better support for Web submissions. 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