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In-medium modifications of light cluster properties in warm stellar matter are studied within the relativistic mean-field approximation. In-medium effects are included by introducing an explicit binding energy shift analytically calculated…

核理论 · 物理学 2018-05-09 Helena Pais , Francesca Gulminelli , Constança Providência , Gerd Röpke

The thermal behavior of the spectroscopic parameters of the S-wave single heavy baryons $ \Sigma_{Q}^{*}, \Xi_{Q}^{*}$ and $ \Omega_{Q}^{*} $ with spin-3/2 are investigated in QCD at finite temperature. We analyze the variations of the mass…

高能物理 - 唯象学 · 物理学 2020-06-24 K. Azizi , A. Türkan

We have studied the dissociation of heavy quarkonium states in a hot QCD medium by investigating the medium modifications to a heavy quark potential. Our model shows that in-medium modification causes the screening of the charge in contrast…

高能物理 - 唯象学 · 物理学 2009-09-11 Vineet Agotiya , Vinod Chandra , Binoy Krishna Patra

In these lectures I first give a motivation for investigations of in-medium properties of hadrons. I discuss the relevant symmetries of QCD and how they might affect the observed hadron properties. I then discuss at length the observable…

核理论 · 物理学 2008-11-26 U. Mosel

We study a thermodynamically consistent implementation of the nucleon volume in the mean field theory, and find that this volume has large consequences on the properties of hadronic matter under extreme conditions such as in astrophysical…

核理论 · 物理学 2012-06-26 Bo-Qiang Ma , Qi-Ren Zhang , D. H. Rischke , W. Greiner

We discuss the QCD sum rule calculation of the heavy-quark effective theory parameters, $\lambda_E$ and $\lambda_H$, which correspond to matrix elements representing quark-gluon three-body components in the $B$-meson wavefunction. We derive…

高能物理 - 唯象学 · 物理学 2013-12-16 Tetsuo Nishikawa , Kazuhiro Tanaka

We revisit the question of whether the U_A(1) symmetry is effectively restored in hot and dense medium. In particular, by generalizing the Witten-Veneziano formula to finite temperature, we investigate whether the mass of eta'-meson will…

核理论 · 物理学 2013-05-30 Youngshin Kwon , Su Houng Lee , Kenji Morita , Gyuri Wolf

Taking into account the additional operators coming up at finite temperature, we investigate the mass and residue of the nucleon in the framework of thermal QCD sum rules. We observe that the mass and residue of the nucleon are initially…

高能物理 - 唯象学 · 物理学 2015-08-04 K. Azizi , G. Kaya

We investigate the in-medium masses of $D$ and $\bar{D}$ mesons in the isospin-asymmetric nuclear matter at finite temperatures arising due to the interactions with the nucleons, the scalar isoscalar meson $\sigma$, and the scalar…

核理论 · 物理学 2014-11-21 Arvind Kumar , Amruta Mishra

Radiative interferences in the multi-parton shower is the building block of QCD jet physics in vacuum. The presence of a hot medium made of quarks and gluons is expected to alter this interference pattern. To study these effects, we derive…

高能物理 - 唯象学 · 物理学 2012-04-26 Yacine Mehtar-Tani , Carlos A. Salgado , Konrad Tywoniuk

Lattice studies suggest that at zero baryon chemical potential and increasing temperature there are three characteristic regimes in QCD that are connected by smooth analytical crossovers: a hadron gas regime at T < T_ch ~ 155 MeV, an…

高能物理 - 唯象学 · 物理学 2024-08-21 T. D. Cohen , L. Ya. Glozman

We analyze thermodynamic models for fluid systems in equilibrium based on a virial expansion of the internal energy in terms of the volume density. We prove that the models, formulated for finite-size systems with $N$ particles, are exactly…

统计力学 · 物理学 2026-04-21 Xin An , Francesco Giglio , Giulio Landolfi

The QCD sum rule approach to the in-medium behavior of hadrons is discussed for omega meson, nucleon and D meson. Emphasis is devoted to the impact of four-quark condensates and to order parameters of spontaneous symmetry breaking.

高能物理 - 唯象学 · 物理学 2008-11-26 R. Thomas , T. Hilger , B. Kampfer

Phenomena that involve two or more on-shell particles are particularly sensitive to the effects of finite volume and require special treatment when computed using lattice QCD. In this paper we generalize the results of L\"uscher, and…

高能物理 - 格点 · 物理学 2017-07-06 Norman H. Christ , Xu Feng , Guido Martinelli , Christopher T. Sachrajda

A new scheme for calculating masses and boost-invariant wave functions of heavy quarkonia is developed in a light-front Hamiltonian formulation of QCD. Only the simplest approximate version with one flavor of quarks and an ansatz for the…

高能物理 - 理论 · 物理学 2017-08-23 Stanislaw D. Glazek

We present a QCD sum-rule determination of the heavy-quark kinetic energy inside a heavy meson, $-\lambda_1/2 m_Q$, which is consistent with the field-theory analog of the virial theorem. We obtain $-\lambda_1\approx (0.10\pm…

高能物理 - 唯象学 · 物理学 2009-10-28 Matthias Neubert

In the proximity of the QCD critical point the bulk viscosity of quark-gluon matter is expected to be proportional to nearly the third power of the critical correlation length, and become significantly enhanced. This work is the first…

核理论 · 物理学 2017-03-15 Akihiko Monnai , Swagato Mukherjee , Yi Yin

In ultrarelativistic collisions of nuclei at the Large Hadron Collider, the created QCD environment rapidly changes, leading to a non-adiabatic evolution of the quantum states involved. Considering this, we first examine the pre-equilibrium…

高能物理 - 唯象学 · 物理学 2025-07-14 Captain R. Singh , Partha Bagchi , Raghunath Sahoo , Jan-e Alam

We solve second order relativistic hydrodynamics equations for a boost-invariant 1+1-dimensional expanding fluid with an equation of state taken from lattice calculations of the thermodynamics of strongly coupled quark-gluon plasma. We…

高能物理 - 唯象学 · 物理学 2010-03-19 Krishna Rajagopal , Nilesh Tripuraneni

Chiral symmetry is one of the most fundamental symmetries in QCD. It is closely connected to hadron properties in the nuclear medium via the reduction of the quark condensate <bar{q}q>, manifesting the partial restoration of chiral…

核实验 · 物理学 2011-06-15 W. K. Brooks , S. Strauch , K. Tsushima