Results 21 to 30 of about 989,594 (156)
Chiral Phase Transition in Linear Sigma Model with Nonextensive Statistical Mechanics
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 From the nonextensive statistical mechanics, we investigate the chiral phase transition at finite temperature T and baryon chemical potential μB in the framework of the linear sigma model. The corresponding nonextensive distribution, based on Tsallis’ statistics, is characterized by a dimensionless nonextensive parameter, q, and the results in the ...
Ke-Ming Shen +5 more
wiley +1 more source
Quark spin polarization in high density quark matter
EPJ Web of Conferences, 2014 It is shown that there exists a possibility of spontaneous spin polarization in high density symmetric quark matter under the tensor-type four-point interaction between quarks in the Nambu-Jona-Lasinio model.
Tsue Yasuhiko +3 more
doaj +1 more source
Top-down Transformation Choice [PDF]
Statistical Modelling 2018, 2017 Simple models are preferred over complex models, but over-simplistic models could lead to erroneous interpretations. The classical approach is to start with a simple model, whose shortcomings are assessed in residual-based model diagnostics. Eventually, one increases the complexity of this initial overly simple model and obtains a better-fitting model.
arxiv +1 more source
Effect of Strong Magnetic Field on Competing Order Parameters in Two‐Flavor Dense Quark Matter
Advances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017 We study the effect of strong magnetic field on competing chiral and diquark order parameters in a regime of moderately dense quark matter. The interdependence of the chiral and diquark condensates through nonperturbative quark mass and strong coupling effects is analyzed in a two‐flavor Nambu‐Jona‐Lasinio (NJL) model. In the weak magnetic field limit,
Tanumoy Mandal +2 more
wiley +1 more source
Journal of High Energy Physics, 2021 We analyze the chiral phase transition of the Nambu-Jona-Lasinio model in the cold and dense region on the lattice, developing the Grassmann version of the anisotropic tensor renormalization group algorithm.
Shinichiro Akiyama +3 more
doaj +1 more source
QCD Thermodynamics and Magnetization in Nonzero Magnetic Field
Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016 In nonzero magnetic field, the magnetic properties and thermodynamics of the quantum‐chromodynamic (QCD) matter are studied in the hadron resonance gas and the Polyakov linear‐sigma models and compared with recent lattice calculations. Both models are fairly suited to describe the degrees of freedom in the hadronic phase.
Abdel Nasser Tawfik +4 more
wiley +1 more source
Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016 Strange hadrons, especially multistrange hadrons, are good probes for the early partonic stage of heavy ion collisions due to their small hadronic cross sections. In this paper, I give a brief review on the elliptic flow measurements of strange and multistrange hadrons in relativistic heavy ion collisions at Relativistic Heavy Ion Collider (RHIC) and ...
Shusu Shi, Xiaochun He
wiley +1 more source
How neutron stars constrain the nuclear equation of state
EPJ Web of Conferences, 2014 Recent neutron star observations set new constraints for the equation of state of baryonic matter. A chiral effective field theory approach is used for the description of neutron-dominated nuclear matter present in the outer core of neutron stars ...
Hell Thomas +2 more
doaj +1 more source
QCD phase diagram in a finite volume in the PNJL model
Open Physics, 2022 In this work, we study the quantum chromodynamics phase diagram at finite temperature and non-zero chemical potential in the framework of the SU(2) flavor of the Polyakov–Nambu – Jona–Lasinio model (PNJL).
Betancourt Francisco J. +5 more
doaj +1 more source
Interacting Dark Matter and q‐Deformed Dark Energy Nonminimally Coupled to Gravity
Advances in High Energy Physics, Volume 2016, Issue 1, 2016., 2016 In this paper, we propose a new approach to study the dark sector of the universe by considering the dark energy as an emerging q‐deformed bosonic scalar field which is not only interacting with the dark matter, but also nonminimally coupled to gravity, in the framework of standard Einsteinian gravity.
Emre Dil, Sergei D. Odintsov
wiley +1 more source