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相关论文: Effect of Vector Meson Mass Decrease on Superfluid…

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In this talk we present a short review of recent developments concerning the interaction of vector mesons with baryons and with nuclei. We begin with the hidden gauge formalism for the interaction of vector mesons, then review results for…

The effects of short-range correlations derived from a realistic meson-exchange potential on the single-particle density matrix in finite nuclei are investigated by analyzing the one-body density in terms of the natural orbits. Basic…

核理论 · 物理学 2016-09-08 A. Polls , H. Müther , W. H. Dickhoff

For the first time, we estimate the in-medium mass shift of the two-flavored heavy mesons $B_c, B_c^*, B_s, B_s^*, D_s$ and $D_s^*$ in symmetric nuclear matter. The estimates are made by evaluating the lowest order one-loop self-energies.…

高能物理 - 唯象学 · 物理学 2024-07-26 S. L. P. G. Beres

We investigate the effect of hyperon matter including hyperon-hyperon interaction on bulk viscosity. Equations of state are constructed within the framework of a relativistic field theoretical model where baryon-baryon interaction is…

天体物理学 · 物理学 2009-11-11 Debarati Chatterjee , Debades Bandyopadhyay

We compute singlet pairing gaps and critical temperatures in pure neutron matter with different many-body approximations. Medium effects tend to reduce gaps and critical temperatures compared to the standard BCS ansatz. In the mean-field…

核理论 · 物理学 2022-06-01 M. Drissi , A. Rios

$^{3}P_{2}$ pairing in neutron matter is investigated using the Bonn potential models. We find pairing energy gaps in pure neutron matter comparable to the results of previous investigators when the attractive tensor coupling is included.…

核理论 · 物理学 2009-10-30 Oe. Elgaroey , L. Engvik , M. Hjorth-Jensen , E. Osnes

An overview is given over recent results on in-medium properties of hadrons, obtained in experiments with photon, proton and deuteron beams at ANKE, CBELSA/TAPS, Crystal Ball, HADES, and BigRIPS. These experiments focus on identifying…

核实验 · 物理学 2012-09-10 Volker Metag

The modifications of $D_s$-meson spectra in ultrarelativistic heavy-ion collisions are identified as a quantitative probe of key properties of the hot nuclear medium. This is enabled by the unique valence-quark content of the…

核理论 · 物理学 2013-03-27 Min He , Rainer J. Fries , Ralf Rapp

We study two kinds of Dirac sea effects on the $^1S_0$ pairing gap in nuclear matter based on the relativistic Hartree approximation to quantum hadrodynamics and the Gor'kov formalism. We show that the vacuum fluctuation effect on the…

核理论 · 物理学 2008-11-26 Masayuki Matsuzaki

Results for the $\pi + N \to \Lambda, \Sigma + K$ reactions in nuclear matter of Ref. nucl-th/0004011 are presented. To evaluate the in-medium modification of the reaction amplitude as a function of the baryonic density we introduce…

核理论 · 物理学 2008-11-26 K. Tsushima , A. Sibirtsev , A. W. Thomas

We obtain the width of the $\omega$ meson in dense nuclear matter by taking into account (i) the free decay of the $\omega$ into three pions, which is dominated by $\rho \pi$ mode, (ii) the processes induced by a vector-baryon interaction…

核理论 · 物理学 2014-01-10 Laura Tolos , Raquel Molina , Eulogio Oset , Angels Ramos

Neutron stars with large masses $\sim 2M_{\odot}$ require the hard stiffness of equation of state (EoS) of neutron-star matter. On the other hand, hyperon mixing brings about remarkable softening of EoS. In order to solve this problem, a…

核理论 · 物理学 2016-03-23 Y. Yamamoto , T. Furumoto , N. Yasutake , Th. A. Rijken

This contribution will survey recent progress toward an understanding of diverse pairing phenomena in dilute nuclear matter at small and moderate isospin asymmetry, with results of potential relevance to supernova envelopes and…

We present predictions for the suppression of B-mesons using AdS/CFT techniques assuming a strongly coupled quark-gluon plasma at $\sqrt{s_{NN}}=2.76$ TeV for central collisions and $\sqrt{s_{NN}}=5.5$ TeV for various centrality classes. We…

高能物理 - 唯象学 · 物理学 2020-11-17 B. A. Ngwenya , W. A. Horowitz

We study single-particle potential of hyperons in nuclear medium starting from QCD. First we carry out lattice QCD numerical simulation to extract baryon-baryon interactions from QCD by means of the HAL QCD method. We employ a full QCD…

高能物理 - 格点 · 物理学 2017-03-22 Takashi Inoue , for HAL QCD Collaboration

Experiments with cold Fermi atoms can be tuned to probe strongly interacting fluids that are very similar to the low-density neutron matter found in the crusts of neutron stars. In contrast to traditional superfluids and superconductors,…

核理论 · 物理学 2008-11-26 Alexandros Gezerlis , J. Carlson

We theoretically investigate the effects of pairing fluctuations in an ultracold Fermi gas near a Feshbach resonance with a negative effective range. By employing a many-body T-matrix theory with a coupled boson-fermion model, we show that…

量子气体 · 物理学 2018-04-25 Hiroyuki Tajima

We investigate the potential of short-baseline experiments in order to measure the dispersion relation of the (muon) neutrino, with a prospect of eventually measuring the neutrino mass. As a byproduct, the experiment would help to constrain…

高能物理 - 唯象学 · 物理学 2014-02-27 U. D. Jentschura , D. Horvath , S. Nagy , I. Nandori , Z. Trocsanyi , B. Ujvari

The rho and omega meson self-energy at finite temperature and baryon density have been analysed for an exhaustive set of mesonic and baryonic loops in the real time formulation of thermal field theory. The large enhancement of spectral…

核理论 · 物理学 2015-06-04 Sourav Sarkar , Sabyasachi Ghosh

Recently Mishonov (Phys. Rev. B {\bf 50}, 4009 (1994)) suggested to measure the Cooper-pair effective mass using current-induced contact potential difference in superconductors. In this Comment it is shown that actual experiments can be…

凝聚态物理 · 物理学 2007-05-23 M. V. Simkin