中文
相关论文

相关论文: Tensor Coupling and Vector Mesons in Dense Nuclear…

200 篇论文

I calculate the rate of electromagnetic scattering in degenerate and partially degenerate plasmas composed of electrons, muons, protons, and neutrons. Correlations with strong interactions, induced by the polarizability of…

核理论 · 物理学 2019-03-01 Stephan Stetina

We study the impacts of magnetic field on the neutrino transport inside core-collapse supernovae (CCSNe). Magnetic field quantizes the momentum of electrons and positrons, resulting in the modification of weak-interaction cross sections and…

高能天体物理现象 · 物理学 2024-05-21 Yudong Luo , Shuai Zha , Toshitaka Kajino

Under the framework of the vector meson dominance model (VMD), the absolute scattering lengths of light vector mesons ($\phi$, $\omega$, and $\rho$) with the deuteron are calculated from the cross sections of vector meson photoproduction…

高能物理 - 唯象学 · 物理学 2024-07-04 Xiao-Yun Wang , Chen Dong , Quanjin Wang

Coherent vector meson production in peripheral nucleus-nucleus collisions is discussed. These interactions may occur for impact parameters much larger than the sum of the nuclear radii. Since the vector meson production is always localized…

核理论 · 物理学 2017-08-23 Joakim Nystrand , Anthony J. Baltz , Spencer R. Klein

We calculate dispersion relations and propagators for the $\sigma$, $\omega$, $\pi$, $\rho$, $\delta$, $\eta$ and $a_1$ mesons in relativistic, dense, hot, symmetric nuclear matter. In addition to the usual mixing of the $\sigma-\omega$…

核理论 · 物理学 2007-05-23 L. Mornas

Using a microscopic transport model together with a coalescence after-burner, we study the formation of deuterons in Au + Au central collisions at $\sqrt{s}=200 AGeV$. It is found that the deuteron transverse momentum distributions are…

The dispersion relation of the $\phi$ meson in nuclear matter is studied in a QCD sum rule approach. In a dense medium, longitudinal and transverse modes of vector particles can have independently modified dispersion relations due to broken…

高能物理 - 唯象学 · 物理学 2020-04-22 HyungJoo Kim , Philipp Gubler

The propagation of the scalar ($\sigma$) and vector ($\omega$) mesons in nuclear matter is studied in detail using the Walecka model over a wide range of densities and including the effects of a finite $\sigma$ width through the inclusion…

核理论 · 物理学 2010-02-17 K. Saito , K. Tsushima , AW Thomas , AG Williams

We calculate the nuclear cross section for coherent and incoherent vector meson production within the QCD color dipole picture, including saturation effects. Theoretical estimates for scattering on both light and heavy nuclei are given over…

高能物理 - 唯象学 · 物理学 2009-08-26 V. P. Goncalves , M. S. Kugeratski , M. V. T. Machado , F. S. Navarra

Based on quantum hadrodynamics with a finite cutoff, the effective masses of vector mesons(\omega, \rho) in nuclear medium are calculated. We use a low-energy effective Lagrangian which is obtained by integrating high-energy quantum…

核理论 · 物理学 2009-10-31 K. Sakamoto , M. Nakai , H. Kouno , A. Hasegawa , M. Nakano

The theory of nuclear structure (binding, low energy spectra, transitions, etc.) depends on nucleon-nucleon (NN) interactions. The meson theory of NN interactions has predictive power for NN scattering, and partial success when applied to…

核理论 · 物理学 2007-05-23 Daniel S. Koltun

Asymmetric nuclear matter is studied in the frame of relativistic mean-field theory, using scalar-isoscalar sigma, vector-isoscalar omega meson together with their selfinteractions, vector-isovector rho meson with its cross-interaction with…

核理论 · 物理学 2009-11-10 Juraj Kotulic Bunta , Stefan Gmuca

We observed the impact of finite magnetic field on the in-medium mass and decay constant of isospin averaged vector $D^*(D^{*^+},D^{*^0})$ and axial-vector $D_1(D^+_1, D^0_1)$ mesons. The quark and gluon condensates of the nuclear medium at…

高能物理 - 唯象学 · 物理学 2020-12-02 Rajesh Kumar , Rahul Chhabra , Arvind Kumar

We extend hadronic models for rho-meson propagation in cold nuclear matter via coupling to in-medium pions to include finite three-momentum. Special care is taken to preserve gauge invariance. Consequences for photoabsorption on the proton…

核理论 · 物理学 2009-10-31 M. Urban , M. Buballa , R. Rapp , J. Wambach

The D-meson properties in dense nuclear matter are studied. The D-meson spectral density is obtained within the framework of a coupled-channel self-consistent calculation assuming, as bare meson-baryon interaction, a separable potential.…

高能物理 - 唯象学 · 物理学 2009-01-07 L. Tolos , J. Schaffner-Bielich , A. Mishra

In the presence of strong magnetic field reported to have been observed on the surface of some neutron stars and on what are called Magnetars, a host of physical phenomenon from the birth of a neutron star to free streaming neutrino cooling…

高能物理 - 唯象学 · 物理学 2007-05-23 Ashok Goyal

With a view towards implementation in microscopic transport simulations of heavy-ion collisions, the properties of spin-isospin modes are studied in nuclear matter consisting of nucleons and Delta isobars that interact by the exchange of pi…

核理论 · 物理学 2015-06-26 J. Helgesson , J. Randrup

Motivated by the effect of matter on neutrino oscillations (the MSW effect) we study in more detail the propagation of neutrinos in a dense medium. The dispersion relation for massive neutrinos in a medium is known to have a minimum at…

高能物理 - 唯象学 · 物理学 2009-10-30 Ken Kiers , Nathan Weiss

Impact of the in-medium modified nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matter is studied by considering both the weak and electromagnetic interactions of neutrinos with the constituents of the…

核理论 · 物理学 2018-08-08 Parada T. P. Hutauruk , Yongseok Oh , K. Tsushima

We study the behavior of the rho vector mass in the context of the almost baryon-free environment of an ultra-relativistic heavy-ion collision. We show that rho scattering within the hadronic phase of the collision leads to a temperature…

高能物理 - 唯象学 · 物理学 2009-11-10 Alejandro Ayala , Jesus Guillermo Contreras , J. Magnin