English
Related papers

Related papers: Continuum study of deconfinement at finite tempera…

200 papers

The confinement-deconfinement phase transition is explored by lattice numerical simulations in non-compact (2+1)-dimensional quantum electrodynamics with massive fermions at finite temperature. The existence of two phases, one with and the…

High Energy Physics - Lattice · Physics 2008-12-18 Roberto Fiore , Pietro Giudice , Alessandro Papa

We investigate the restoration of chiral symmetry at finite temperature in the SU(2) quark meson model where the mean field approximation is compared to the renormalized version for quarks and mesons. In a combined approach at finite…

High Energy Physics - Phenomenology · Physics 2018-04-18 Andreas Zacchi , Jürgen Schaffner-Bielich

We study a phenomenological model that mimics the characteristics of QCD theory at finite temperature. The model involves fermions coupled with a modified Abelian gauge field in a tachyon matter. It reproduces some important QCD features…

High Energy Physics - Phenomenology · Physics 2021-05-14 Adamu Issifu , Julio C. M. Rocha , Francisco A. Brito

The temperature dependence of the sum of the QCD up- and down-quark masses, $(m_u + m_d)$ and the pion decay constant, $f_\pi$, are determined from two thermal finite energy QCD sum rules for the pseudoscalar-current correlator. This…

High Energy Physics - Phenomenology · Physics 2016-12-21 C. A. Dominguez , L. A. Hernandez

We study quenched SU(2) lattice gauge theory with adjoint fermions in a wide range of temperatures. We focus on spectral quantities of the Dirac operator and use the temporal fermionic boundary conditions as a tool to probe the system. We…

High Energy Physics - Lattice · Physics 2009-11-13 Erek Bilgici , Christof Gattringer , Ernst-Michael Ilgenfritz , Axel Maas

We present results on the chiral and deconfinement properties of the QCD transition at finite temperature. We performed calculations using asqtad and HISQ/tree actions using lattices with temporal extent N_tau=6, 8 and 12 allowing to…

High Energy Physics - Lattice · Physics 2015-05-28 A. Bazavov , P. Petreczky

We show that finite-temperature deconfinement and chiral transitions can split in a strong enough magnetic field. The splitting in critical temperatures of these transitions in a constant magnetic field of a typical LHC magnitude is of the…

High Energy Physics - Phenomenology · Physics 2011-07-28 Eduardo S. Fraga , Ana Julia Mizher , M. N. Chernodub

The QCD cross-over line in the temperature ($T$) -- baryo-chemical potential ($\mu_B$) plane has been computed by several lattice groups by calculating the chiral order parameter and its susceptibility at finite values of $\mu_B$. In this…

We study the restoration of chiral symmetry in linear sigma models with two quark flavors. The models taken into consideration have a U(2)_L x U(2)_R and an O(4) internal symmetry. The physical mesons of these models are sigma, pion, eta…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stefan Michalski

We present a model for quark matter with a density dependent quark-quark (confining) potential, which allows to describe a deconfinement phase transition as the system evolves from a low density assembly of bound structures to a high…

High Energy Physics - Phenomenology · Physics 2016-09-01 W. M. Alberico , M. Nardi , S. Quattrocolo

We discuss recent progress in studies of QCD thermodynamics with almost physical light quark masses and a physical value of the strange quark mass. We summarize results on the transition temperature in QCD and analyze the relation between…

High Energy Physics - Lattice · Physics 2008-11-26 Frithjof Karsch

We study the chiral crossover, the spectra of light-light and of static-light mesons and the deconfinement crossover at finite temperature T. Our framework is the confining and chiral invariant quark model, related to truncated Coulomb…

High Energy Physics - Phenomenology · Physics 2011-05-03 Pedro Bicudo , Nuno Cardoso , Marco Cardoso

We study the features of nonlocal SU(3) chiral quark models with wave function renormalization. Model parameters are determined from meson phenomenology, considering different nonlocal form factor shapes. In this context we analyze the…

High Energy Physics - Phenomenology · Physics 2013-11-13 J. P. Carlomagno , D. Gomez Dumm , N. N. Scoccola

The phase structure of QCD with various number of flavors is studied for Wilson quarks. For the case of $N_F=3$ we find that the finite temperature deconfining transition is of first order in the chiral limit on an $N_t=4$ lattice. Together…

High Energy Physics - Lattice · Physics 2016-08-14 Y. Iwasaki , K. Kanaya , S. Sakai , T. Yoshié

We study constraints on thermal phase transitions of ${\rm SU}(N_c)$ gauge theories by using the 't Hooft anomaly involving the center symmetry and chiral symmetry. We consider two cases of massless fermions: (i) adjoint fermions, and (ii)…

High Energy Physics - Theory · Physics 2018-05-25 Hiroyuki Shimizu , Kazuya Yonekura

In this Addendum to our recent paper, Phys. Rev. D 77, 054027 (2008), we point out that a chiral restoration phase transition in a quarkyonic matter at low temperatures is of second order within a manifestly confining and chirally symmetric…

High Energy Physics - Phenomenology · Physics 2008-06-04 L. Ya. Glozman , R. F. Wagenbrunn

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 investigate the order of the finite temperature chiral symmetry restoration transition for QCD with two massless fermions, by using a novel method, based on simulating imaginary values of the quark chemical potential…

High Energy Physics - Lattice · Physics 2014-10-30 Claudio Bonati , Philippe de Forcrand , Massimo D'Elia , Owe Philipsen , Francesco Sanfilippo

In the framework of nonlocal SU(2) chiral quark models with Polyakov loop, we analyze the dependence of the deconfinement and chiral restoration critical temperatures on the explicit chiral symmetry breaking driven by the current quark…

High Energy Physics - Phenomenology · Physics 2013-05-30 V. Pagura , D. Gómez Dumm , N. N. Scoccola

We investigate the deconfining phase transition in full QCD with two flavors of staggered fermions in presence of a constant abelian chromomagnetic field. We find that the deconfinement temperature decreases and eventually goes to zero by…

High Energy Physics - Lattice · Physics 2008-11-26 Paolo Cea , Leonardo Cosmai , Massimo D'Elia