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At high density, matter is expected to undergo a phase transition to deconfined quark matter. Although the density at which it happens and the strength of the transition are still largely unknown, we can model it to be in agreement with…

Nuclear Theory · Physics 2023-11-21 Alexander Clevinger , Veronica Dexheimer , Jeffrey Peterson

We present results of a microscopic calculation using NJL-type model of possible spin-one pairings in two flavor quark matter for applications in compact star phenomenology. We focus on the color-spin locking phase (CSL) in which all quarks…

High Energy Physics - Phenomenology · Physics 2008-11-26 D. N. Aguilera

At the extreme densities reached in the core of neutron stars, it is possible that quark deconfined matter is produced. The formation of this new phase of strongly interacting matter is likely to occur via a first-order phase transition for…

Nuclear Theory · Physics 2024-10-14 Mirco Guerrini , Giuseppe Pagliara , Alessandro Drago , Andrea Lavagno

An extended quark mass density- and temperature- dependent model which includes the couplings between quarks and the sigma-mesons, omega-mesons is suggested. The MIT bag boundary constrain has been given up and the interactions between…

Nuclear Theory · Physics 2007-05-23 Wei Liang Qian , Ru-Keng Su

We study here the equation of state of symmetric nuclear matter at finite temperatures using a modified SU(2) Chiral Sigma model. The effect of temperature on effective mass, pressure, entropy and binding energy is discussed. The liquid-gas…

Nuclear Theory · Physics 2007-05-23 P. K. Jena , L. P. Singh

Low-density nuclear matter at finite temperature is considered representing the strong coupling situation of a highly correlated fermion system. One-particle se lf-energies and the density of states in the vicinity of the pairing transition…

Nuclear Theory · Physics 2009-10-31 A. Schnell , G. Roepke , P. Schuck

The chiral phase boundary of nuclear matter is expected to have a critical point where the rapid crossover of lattice methods at zero chemical potential becomes a first-order phase transition. Phenomenological models based on the AdS/CFT…

High Energy Physics - Phenomenology · Physics 2024-04-17 Sean P. Bartz , Robert C. Meadows , Glenn Brock

A density wave in quark matter is discussed at finite temperature, which occurs along with the chiral condensation, and is described by a dual standing wave in scalar and pseudo-scalar condensates on the chiral circle. The mechanism is…

High Energy Physics - Phenomenology · Physics 2011-07-19 E. Nakano , T. Tatsumi

We develop a microscopic theory to analyze the phase behaviour and compute correlation functions of dense assemblies of soft repulsive particles both at finite temperature, as in colloidal materials, and at vanishing temperature, a…

Disordered Systems and Neural Networks · Physics 2011-11-09 Ludovic Berthier , Hugo Jacquin , Francesco Zamponi

Short-range quark-quark correlations in hot nuclear matter are examined within the modified quark-meson coupling model (MQMC) by adding repulsive scalar and vector quark-quark interactions. Without these correlations, the bag radius…

Nuclear Theory · Physics 2008-11-26 I. Zakout , H. R. Jaqaman

The equation of state and phase diagram of strongly interacting matter composed of $\alpha$ particles are studied in the mean-field approximation. The particle interactions are included via a Skyrme-like mean field, containing both…

Nuclear Theory · Physics 2021-02-10 Leonid M. Satarov , Roman V. Poberezhnyuk , Igor N. Mishustin , Horst Stoecker

The CP-restoring phase transition at theta = pi and high temperature is investigated using two related models that aim to describe the low-energy phenomenology of QCD, the NJL model and the linear sigma model coupled to quarks. Despite many…

High Energy Physics - Phenomenology · Physics 2009-11-19 Jorn K. Boomsma , Daniel Boer

Chiral restoration phase transition in hot and/or dense hadronic matter is discussed in terms of the BR scaling based on chiral symmetry and scale anomaly of QCD. The precise connection between the scalar field that figures in the trace…

High Energy Physics - Phenomenology · Physics 2014-11-17 G. E. Brown , Mannque Rho

We calculate the shear viscosity $\eta$ of a quark plasma through the two-flavor Nambu-Jona-Lasinio (NJL) model in the chiral limit, at finite temperature $T$, and baryon number chemical potential $\mu_B$. We solve the Boltzmann equation by…

High Energy Physics - Phenomenology · Physics 2015-06-22 Çağlar Doğan

The quark meson (linear sigma) model with linearized fluctuations displays at a critical end point the onset of a curve of first-order phase transitions (FOPTs) located at non-zero chemical potentials and temperatures below a certain…

High Energy Physics - Phenomenology · Physics 2017-02-01 Falk Wunderlich , Burkhard Kampfer

We study the phase structure of the (3+1)-dimensional cold and dense QCD with the Kogut--Susskind quark in the strong coupling limit using the tensor renormalization group method. The chiral and nuclear transitions are investigated by…

High Energy Physics - Lattice · Physics 2026-01-29 Yuto Sugimoto , Shinichiro Akiyama , Yoshinobu Kuramashi

We calculate relativistic Fermi liquid parameters (RFLPs) for the description of the properties of dense nuclear matter (DNM) using Effective Chiral Model. Analytical expressions of Fermi liquid parameters (FLPs) are presented both for the…

High Energy Physics - Phenomenology · Physics 2008-09-18 Kausik Pal , Subhrajyoti Biswas , Abhee K. Dutt-Mazumder

During the collapse of massive stars, and the supernova type-II explosions, stellar matter reaches densities and temperatures which are similar to the ones obtained in intermediate-energy nucleus-nucleus collisions. The nuclear…

Nuclear Theory · Physics 2007-05-23 A. S. Botvina , I. N. Mishustin , W. Trautmann

We investigate a subfreezing droplet impact scenario in a low-humidity environment, where the target is a cold granular monolayer. When the undercooling degree of targets passes a threshold, such a granular layer effectively postpones the…

Fluid Dynamics · Physics 2024-03-28 Yudong Li , Song-Chuan Zhao

We develop a unified model of hadrons and quarks. Within this approach we investigate the phase structure of the model as function of temperature and chemical potential. Computing the equation of state of cold matter we determine neutron…

Nuclear Theory · Physics 2015-05-27 S. Schramm , V. Dexheimer , R. Negreiros , T. Schürhoff