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相关论文: Multiple critical end points in magnetized three f…

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The critical end-point (CEP) and critical behaviour in its vicinity, has been explored in the two flavour effective chiral models with and without the presence of effective Polyakov loop potential.The tricritical point (TCP) in the massless…

高能物理 - 唯象学 · 物理学 2013-05-30 Vivek Kumar Tiwari

Based on the assumption that the QCD phase diagram gives a realistic picture of hadronic and quark matter under different regimes, it is possible to claim that a quark core may be present inside compact objects commonly named hybrid neutron…

核理论 · 物理学 2022-09-28 M. R. Pelicer , D. P. Menezes

The critical endpoint (CEP) is a fundamental feature of the Quantum Chromodynamics (QCD) phase diagram, marking the boundary between quark-gluon plasma and hadronic matter. Heavy-ion collision experiments, such as the RHIC Beam Energy Scan,…

高能物理 - 唯象学 · 物理学 2025-02-05 A. Sarkar , P. Deb , R. Bose

The QCD phase diagram at zero chemical potential and finite temperature subject to an external magnetic field is studied within the three flavor Nambu--Jona-Lasinio (NJL) model and the NJL model with the Polyakov loop (PNJL). A scalar…

高能物理 - 唯象学 · 物理学 2014-06-25 M. Ferreira , P. Costa , O. Lourenço , T. Frederico , C. Providência

The properties of the chiral phase transition at finite temperature and chemical potential are investigated within a nonlocal covariant extension of the Nambu-Jona-Lasinio model based on a separable quark-quark interaction. We consider both…

高能物理 - 唯象学 · 物理学 2009-10-31 I. General , D. Gomez Dumm , N. N. Scoccola

In this work we analyze the finite-volume and magnetic effects on the phase structure of a generalized version of Nambu--Jona-Lasinio model with three quark flavors. By making use of mean-field approximation and Schwinger's proper-time…

高能物理 - 唯象学 · 物理学 2019-04-09 L. M. Abreu , E. B. S. Corrêa , C. A. Linhares , A. P. C. Malbouisson

The effect of a strong magnetic field on the location of the critical end point (CEP) in the QCD phase diagram is discussed under different scenarios. In particular, we consider the contribution of the vector interaction and take into…

高能物理 - 唯象学 · 物理学 2015-09-01 Pedro Costa , Márcio Ferreira , Débora P. Menezes , João Moreira , Constança Providência

The two-Equation of State (EoS) model is used to describe the hadron-quark phase transition in asymmetric matter formed at high density in heavy-ion collisions. For the quark phase, the three-flavor Nambu--Jona-Lasinio (NJL) effective…

核理论 · 物理学 2011-06-08 G. Y. Shao , M. Di Toro , B. Liu , M. Colonna , V. Greco , Y. X. Liu , S. Plumari

We consider the variation of the strange quark-chemical potential in the phase diagramme of nuclear matter, employing the order parameters and mass-scaled partition functions in each domain and enforcing flavour conservation. Assuming the…

高能物理 - 唯象学 · 物理学 2007-05-23 Apostolos D. Panagiotou , Panayotis G. Katsas

We discuss the thermal CP phase transition in QCD at $\theta=\pi$ under a weak magnetic field background, where the electromagnetic scale anomaly gets significant. To explicitize, we work on a two-flavor Nambu-Jona-Lasinio model at…

高能物理 - 唯象学 · 物理学 2025-04-24 Yuanyuan Wang , Shinya Matsuzaki , Mamiya Kawaguchi , Akio Tomiya

In this work, we study the chiral and deconfinement phase transitions in a two-flavor Polyakov loop extended Nambu--Jona-Lasinio (PNJL) model. And note that the self-consistent mean field approximation is employed by introducing an…

核理论 · 物理学 2023-06-22 Xiaozhu Yu , Liangkai Wu , Lang Yu , Xinyang Wang

We investigate the influence of quark anomalous magnetic moments (AMMs) on the mass spectra of neutral pseudoscalar mesons ($\pi$, $K$, $\eta$, $\eta^{'}$) under external magnetic fields, finite temperatures, and quark chemical potentials…

高能物理 - 唯象学 · 物理学 2025-08-18 Chang-Yong Yang , Sheng-Qin Feng

In this article we explore the critical end point in the $T-\mu$ phase diagram of a thermomagnetic nonlocal Nambu--Jona-Lasinio model in the weak field limit. We work with the Gaussian regulator, and find that a crossover takes place at…

高能物理 - 唯象学 · 物理学 2017-09-15 F. Marquez , R. Zamora

We investigate the QCD phase diagram and the associated Lee--Yang edge singularities using the two-flavor nonlocal Nambu--Jona-Lasinio model extended to complex chemical potential. There exists a strong correlation between the chiral phase…

高能物理 - 唯象学 · 物理学 2025-09-04 Zong-shuai Zhang , Yi Lu , Yu-xin Liu

It was recently derived that the QCD running coupling is a function of the magnetic field strength under the strong magnetic field approximation. Inspired by this progress and based on the self-consistent solutions of gap equations, the…

高能物理 - 唯象学 · 物理学 2016-03-23 Chang-Feng Li , Li Yang , Xin-Jian Wen , Guang-Xiong Peng

The effect of an external (electro)magnetic field on the finite temperature transition of QCD is studied. We generate configurations at various values of the quantized magnetic flux with $N_f=2+1$ flavors of stout smeared staggered quarks,…

高能物理 - 格点 · 物理学 2012-02-29 G. S. Bali , F. Bruckmann , G. Endrodi , Z. Fodor , S. D. Katz , S. Krieg , A. Schafer , K. K. Szabo

The Polyakov loop and the chiral condensate are used as order parameters to explore analytically the possible phase structure of finite temperature QCD. Nambu-Jona-Lasinio models in a background temporal gauge field are combined with a…

高能物理 - 格点 · 物理学 2009-10-28 Peter N. Meisinger , Michael C. Ogilvie

The phase structures of Nambu-Jona-Lasinio models with one or two flavours have been investigated at non-zero values of $\mu$ and $H$, where $H$ is an external magnetic field and $\mu$ is the chemical potential. In the phase portraits of…

高能物理 - 唯象学 · 物理学 2016-08-25 D. Ebert , K. G. Klimenko , M. A. Vdovichenko , A. S. Vshivtsev

We consider the change of the strange-quark chemical potential in the phase diagram of nuclear matter, employing the Wilson loop and scalar quark condensate order parameters, mass-scaled partition functions and enforcing flavor…

高能物理 - 唯象学 · 物理学 2008-11-26 Apostolos D. Panagiotou , Panayiotis G. Katsas

We study the phase diagram of dense, locally neutral three-flavor quark matter within the framework of the Nambu--Jona-Lasinio model. In the analysis, dynamically generated quark masses are taken into account self-consistently. The phase…

高能物理 - 唯象学 · 物理学 2008-11-26 Stefan B. Ruester , Verena Werth , Michael Buballa , Igor A. Shovkovy , Dirk H. Rischke