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Related papers: Confinement and Chiral Symmetry, a Lattice QCD tes…

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Based on the spontaneous breaking of chiral symmetry, chiral perturbation theory (ChPT) is believed to approximate confinement scale QCD. Dedicated and increasingly accurate experiments and improving lattice calculations are confirming this…

High Energy Physics - Experiment · Physics 2013-04-17 A. M. Bernstein

Based on simulations of 2+1 flavor lattice QCD with M\"obius domain wall fermions at high temperatures, we compute a series of spatial correlation functions to study the screening masses in mesonic states. We compare these masses with the…

High Energy Physics - Lattice · Physics 2024-01-25 David Ward , Sinya Aoki , Yasumichi Aoki , Hidenori Fukaya , Shoji Hashimoto , Issaku Kanamori , Takashi Kaneko , Jishnu Goswami , Yu Zhang

We study the thermal transition of QCD with two degenerate light flavours by lattice simulations using $O(a)$-improved Wilson quarks. Temperature scans are performed at a fixed value of $N_t = (aT)^{-1}=16$, where $a$ is the lattice spacing…

High Energy Physics - Lattice · Physics 2017-02-23 Bastian B. Brandt , Anthony Francis , Harvey B. Meyer , Owe Philipsen , Daniel Robaina , Hartmut Wittig

We propose that in QCD with dynamical quarks, colour deconfinement occurs when an external field induced by the chiral condensate strongly aligns the Polyakov loop. This effect sets in at the chiral symmetry restoration temperature T-chi…

High Energy Physics - Phenomenology · Physics 2009-01-07 S. Digal , E. Laermann , H. Satz

Yang-Mills theories with a gauge group SU(N_c\=3)and quark matter in the fundamental representation share many properties with the theory of strong interactions, QCD with N_c=3. We show that, for N_c even and in the confinement phase, the…

High Energy Physics - Lattice · Physics 2014-11-20 Kurt Langfeld , Bjoern H. Wellegehausen , Andreas Wipf

We study lattice QCD with two flavors of dynamical domain wall quarks. With renormalization group motivated actions, we find chiral symmetry can be preserved to a high degree at lattice cut off of a^{-1} \sim 2 GeV even for fifth dimension…

High Energy Physics - Lattice · Physics 2015-06-25 Taku Izubuchi , RBC Collaboration

The light-quark correlator in the axial-vector channel is used, in conjunction with finite energy QCD sum rules at finite temperature, in order to (a) establish a relation between chiral-symmetry restoration and deconfinement, and (b)…

High Energy Physics - Phenomenology · Physics 2013-05-30 C. A. Dominguez , M. Loewe , Y. Zhang

We simulate Lattice QED in a constant external magnetic field using the RHMC algorithm. We seek evidence for chiral symmetry breaking predicted by truncated Schwinger-Dyson methods. Since the predicted values of the dynamical electron mass…

High Energy Physics - Lattice · Physics 2022-10-21 D. K. Sinclair , J. B. Kogut

The possibility for existence of cold, dense chirally symmetric matter with confinement is reviewed. The answer to this question crucially depends on the mechanism of mass generation in QCD and interconnection of confinement and chiral…

High Energy Physics - Phenomenology · Physics 2015-05-20 L. Ya. Glozman

We argue that the order of the chiral transition for N_f=2 is a sensitive probe of the QCD vacuum, in particular of the mechanism of color confinement. A strategy is developed to investigate the order of the transition by use of finite size…

High Energy Physics - Lattice · Physics 2009-11-11 M. D'Elia , A. Di Giacomo , C. Pica

It is investigated how quark confinement depends on the number of flavors, $N_f$, in QCD on the lattice with Wilson quarks. We strengthen and extend the conclusion reported at {\it Lattice 91}: (1) For $N_f \le 6$ the finite temperature…

High Energy Physics - Lattice · Physics 2009-10-22 Y. Iwasaki , K. Kanaya , S. Sakai , T. Yoshie

We study chiral symmetry breaking in QCD, using as ingredients in the quark gap equation recent lattice results for the gluon and ghost propagators. The Ansatz employed for the quark-gluon vertex is purely non-Abelian, introducing a crucial…

High Energy Physics - Phenomenology · Physics 2011-07-28 Arlene C. Aguilar

We consider two-flavor asymmetric QCD combined with a low-energy effective model inspired by chiral perturbation theory and lattice data to investigate the effects of masses, isospin and baryon number on the pressure and the deconfinement…

High Energy Physics - Phenomenology · Physics 2009-03-23 L. F. Palhares , E. S. Fraga , C. Villavicencio

Deconfinement and chiral symmetry restoration are explored in a confining, renormalisable, Dyson-Schwinger equation model of two-flavour QCD. An order parameter for deconfinement is introduced and used to establish that, in the chiral…

Nuclear Theory · Physics 2010-03-04 Axel Bender , David Blaschke , Yuri Kalinovsky , Craig D. Roberts

A key question to QCD is what mechanism generates the hadron mass in the light quark sector, where both confinement and chiral symmetry breaking are in the game. Are confinement and chiral symmetry breaking in the vacuum uniquely…

High Energy Physics - Phenomenology · Physics 2012-12-03 L. Ya. Glozman

I review some recent lattice results on studying chiral and deconfinement transition in QCD at finite temperature and density, as well as properties of strongly interacting matter at high temperatures. I discuss lattice results on the…

High Energy Physics - Lattice · Physics 2013-01-29 P. Petreczky

We study, for the first time, the interplay between colour-confining and chiral symmetry-breaking dynamics in gauge-fermion systems with a general number of flavours and colours. Specifically, we work out the flavour dependence of the…

High Energy Physics - Theory · Physics 2024-12-18 Florian Goertz , Álvaro Pastor-Gutiérrez , Jan M. Pawlowski

We study the chiral symmetry in two-color QCD with N massless flavors at finite temperature, using an effective theory. For the gauge group SU(2), the chiral symmetry is enlarged to SU(2N), which is then spontaneously broken to Sp(2N) at…

High Energy Physics - Phenomenology · Physics 2009-10-31 J. Wirstam

The dual condensate is a new QCD phase transition order parameter, which connnects confinement and chiral symmetry breaking as different mass limits. We discuss the relation between the fermion spectrum at general boundary conditions and…

High Energy Physics - Lattice · Physics 2015-05-20 Bo Zhang , Falk Bruckmann , Christof Gattringer , Zoltan Fodor , Kalman K. Szabo

A general discussion is presented of the possible symmetries responsible for confinement of color and of their evidence in lattice simulations. The consequences on the phase diagram of $QCD$ are also analyzed.

High Energy Physics - Lattice · Physics 2009-01-05 A. Di Giacomo