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相关论文: Locating the critical endpoint of QCD: mesonic bac…

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Within the framework of Polyakov-Nambu-Jona-Lasinio model and by means of Multiple Reflection Expansion, we study the finite volume effects on chiral phase transition, especially its influence on the location of the possible critical end…

高能物理 - 唯象学 · 物理学 2018-12-27 Zhao Ya-Peng , Yin Pei-Lin , Yu Zhen-Hua , Zong Hong-Shi

We study the two-flavor quark-meson (QM) model with the functional renormalization group (FRG) to describe the effects of collective mesonic fluctuations on the phase diagram of QCD at finite baryon and isospin chemical potentials, $\mu_B$…

高能物理 - 唯象学 · 物理学 2012-12-21 Kazuhiko Kamikado , Nils Strodthoff , Lorenz von Smekal , Jochen Wambach

We discuss the critical behaviour of strongly interacting matter close to the QCD phase transition. Emphasis is put on a presentation of results from lattice calculations that illustrate deconfining as well as chiral symmetry restoring…

高能物理 - 格点 · 物理学 2009-09-25 Frithjof Karsch

To investigate finite-volume effects on the chiral symmetry restoration and the deconfinement transition and some impacts of possible global topological background for a quantum chromodynamics (QCD) system with $N_f=2$ (two quark flavors),…

高能物理 - 唯象学 · 物理学 2017-04-12 Zan Pan , Zhu-Fang Cui , Chao-Hsi Chang , Hong-Shi Zong

We study the modification of the chiral phase structure of QCD due to an external magnetic field. We first demonstrate how the effect of magnetic field can systematically be incorporated into a generalized Ginzburg-Landau framework. We then…

高能物理 - 唯象学 · 物理学 2018-09-19 H. Abuki

Within the framework of Dyson-Schwinger equations and by means of Multiple Reflection Expansion, we study the finite volume effects on the chiral phase transition in a sphere, especially discuss its influence on the location of the possible…

高能物理 - 唯象学 · 物理学 2019-09-04 Ya-Peng Zhao , Rui-Rui Zhang , Han Zhang , Hong-Shi Zong

We investigate chiral-restoration patterns of QCD for N_{c}=3 and N_{f}=2 at finite temperature (T) and zero quark-chemical potential beyond the chiral limit, indicating the explicit chiral-symmetry breaking. To this end, we employ the…

高能物理 - 唯象学 · 物理学 2010-11-11 Seung-il Nam , Chung-Wen Kao

Location of critical point and mapping the QCD phase boundary still exists as one of the most interesting and studied problems of heavy-ion physics. A new equation of state (EOS) for a gas of extended baryons and pointlike mesons is…

高能物理 - 唯象学 · 物理学 2011-03-23 C. P. Singh , P. K. Srivastava , S. K. Tiwari

We summarize the results of the SU(4) chiral meson Lagrangian approach to the cross section for J/psi breakup by pion and rho meson impact and suggest a new scheme for the introduction of formfactors for the meson-meson interaction. This…

高能物理 - 唯象学 · 物理学 2007-05-23 V. V. Ivanov , Y. L. Kalinovsky , D. Blaschke , G. Burau

A previous method for handling bound states in QCD is briefly revisited. Taking advantage of the Feynman-Schwinger representation for the iterated quark propagator in an external field, it is possible to give closed representations for…

高能物理 - 唯象学 · 物理学 2017-08-23 M. Baldicchi , G. M. Prosperi

We evaluate equal time point to point spatial correlation functions of mesonic currents at finite temperature. For this purpose we consider the QCD vacuum structure in terms of quark antiquark condensates and their fluctuations in terms of…

高能物理 - 唯象学 · 物理学 2014-11-17 Varun Sheel , Hiranmaya Mishra , Jitendra C. Parikh

We investigate the low-temperature phase of QCD and the crossover region with two light flavors of quarks. The chiral expansion around the point $(T, m_q = 0)$ in the temperature vs. quark-mass plane indicates that a sharp real-time…

高能物理 - 格点 · 物理学 2014-10-23 Bastian B. Brandt , Anthony Francis , Harvey B. Meyer , Daniel Robaina

Incorporating its most relevant global symmetry, chiral effective models are aimed at investigating, in a simplified framework, important aspects of the yet unsolved QCD. We review some recent results obtained in these models on the…

高能物理 - 唯象学 · 物理学 2007-05-23 Zs. Szep

Gribov's theory of light quark confinement implies the existence of two kinds of scalar bound states. The phase diagram of the three-flavor QCD is mapped out in the (m_pi-m_K)-plane with help of the SU_L(3)xSU_R(3) linear sigma model…

高能物理 - 唯象学 · 物理学 2017-08-23 T. Herpay , A. Patkos , Zs. Szep

We use the available two different self-consistent formulations of quasiparticle models and extend their applications for the description of quark gluon plasma (QGP) at non-vanishing baryon chemical potentials. The thermodynamical…

高能物理 - 唯象学 · 物理学 2015-03-17 P. K. Srivastava , S. K. Tiwari , C. P. Singh

We investigate the evolution of the density-density correlations in the isoscalar critical condensate formed at the QCD critical point. The initial equilibrium state of the system is characterized by a fractal measure determining the…

高能物理 - 唯象学 · 物理学 2008-11-26 N. G. Antoniou , F. K. Diakonos , E. N. Saridakis

Dynamical mean field theory is used to study the quantum critical point (QCP) in the doped Hubbard model on a square lattice. The QCP is characterized by a universal scaling form of the self energy and a spin density wave instability at an…

强关联电子 · 物理学 2017-04-05 Wenhu Xu , Gabriel Kotliar , Alexei M. Tsvelik

We present the renormalized Taylor expansion of the chiral condensate with chemical potential. The relation with the Taylor coefficients of meson susceptibilities and the quark mass dependence of the quark number susceptibilities are…

高能物理 - 格点 · 物理学 2008-11-26 Sourendu Gupta , R. Ray

We consider the low energy effective action of QCD below the chiral symmetry breaking scale, including, in Wilson's spirit, all operators of dimensionality less or equal to 6 which can be built with quark and chiral fields. The effect of…

高能物理 - 唯象学 · 物理学 2009-10-31 A. A. Andrianov , D. Espriu , R. Tarrach

Dynamical chiral symmetry breaking (DCSB) in QED$_{3}$ with finite gauge boson mass is studied in the framework of the rainbow approximation of Dyson-Schwinger equations. By adopting a simple gauge boson propagator ansatz at finite…

高能物理 - 唯象学 · 物理学 2010-11-08 Jian-Feng Li , Yu-Qing Zhou , Hong-Tao Feng , Wei-Min Sun , Hong-Shi Zong
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