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Related papers: Phase Structure in a Hadronic Chiral Model

200 papers

The finite temperature chiral condensate for 2+1 quark flavors is considered in the framework of the hadron resonance gas model. This requires some dynamical information, for which two models are employed: one based on the quark structure…

High Energy Physics - Phenomenology · Physics 2013-06-05 J. Jankowski , D. Blaschke , M. Spalinski

We study one-flavor $\mathrm{SU}(2)$ and $\mathrm{SU}(3)$ lattice QCD in ($1+1$) dimensions at zero temperature and finite density using matrix product states and the density matrix renormalization group. We compute physical observables…

High Energy Physics - Lattice · Physics 2025-02-03 Tomoya Hayata , Yoshimasa Hidaka , Kentaro Nishimura

We perform a study of infinite hadronic matter, finite nuclei and hypernuclei with an improved method of calculating the effective baryon mass. A detailed study of the predictions of the model is made in comparison with the available data…

Nuclear Theory · Physics 2010-02-17 P. Wang , D. B. Leinweber , A. W. Thomas , A. G. Williams

We review the results of a phenomenological model for cold and dense nuclear matter exhibiting a chiral phase transition. The idea is to model the quark-hadron phase transition under neutron star conditions within a single model, but…

Nuclear Theory · Physics 2022-11-30 Eduardo S. Fraga , Rodrigo da Mata , Savvas Pitsinigkos , Andreas Schmitt

We investigate the chiral phase transition at finite temperature and chemical potential within SU(2) and SU(3) Nambu-Jona-Lasinio type models. The behavior of the baryon number susceptibility and the specific heat, in the vicinity of the…

High Energy Physics - Phenomenology · Physics 2009-03-23 C. A de Sousa , Pedro Costa , M. C. Ruivo

We review in detail recent advances in our understanding of the phase structure and the phase transitions of hadronic matter in strong magnetic fields $B$ and zero quark chemical potentials $\mu_f$. Many aspects of QCD are described using…

High Energy Physics - Phenomenology · Physics 2016-04-15 Jens O. Andersen , William R. Naylor , Anders Tranberg

The properties of baryonic matter have been investigated at finite density and temperature using different models. The variation of baryon masses and fractional number densities with baryon density and temperature obtained from different…

Nuclear Theory · Physics 2014-11-18 Abhijit Bhattacharyya , Sanjay K. Ghosh

I revisit the phase structure of hot and dense matter out of quarks and gluons with some historical consideration on the color deconfinement and chiral phase transitions. My goal is to make clear which part of the QCD phase diagram is under…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kenji Fukushima

We analyze the phases of the Sakai-Sugimoto model at finite temperature and baryon chemical potential. Baryonic matter is represented either by 4-branes in the 8-branes or by strings stretched from the 8-branes to the horizon. We find the…

High Energy Physics - Theory · Physics 2009-03-04 Oren Bergman , Gilad Lifschytz , Matthew Lippert

We investigate strongly interacting dense matter and neutron stars using a flavor-SU(3) approach based on a non-linear realization of chiral symmetry as well as a hadronic flavor-SU(2) parity-doublet model. We study chiral symmetry…

Solar and Stellar Astrophysics · Physics 2014-11-20 S. Schramm , V. Antocheviz Dexheimer

The relevance of higher order cumulants of conserved charges for the analysis of freeze-out and critical conditions in heavy ion collisions at LHC and RHIC is discussed. Using properties of $O(4)$ scaling functions, the generic structure of…

Nuclear Theory · Physics 2015-06-19 Bengt Friman

We study the electromagnetic form factors of the lowest-lying singly heavy baryons in a pion mean-field approach, which is also known as the SU(3) chiral quark-soliton model. In the limit of the heavy-quark mass, the dynamics inside a…

High Energy Physics - Phenomenology · Physics 2021-02-17 June-Young Kim , Hyun-Chul Kim

A new phase of dense QCD proposed in the limit of large number of colors, Quarkyonic Phase, is discussed in chiral approaches. The interplay between chiral symmetry breaking and confinement together with the $N_c$ dependence of the phase…

High Energy Physics - Phenomenology · Physics 2010-11-02 Chihiro Sasaki

We present our predictions for meson form factors for the SU(3) octet and investigate their impact on the pion electroproduction cross sections. The electric and magnetic polarizabilities of the SU(3) octet of mesons and baryons are…

High Energy Physics - Phenomenology · Physics 2015-06-17 A. Aleksejevs , S. Barkanova

In this talk I discuss three recent developments in the theoretical understanding of the phase diagram of the strong interaction. The first topic deals with the comparison of model calculations of the quark-hadron transition at vanishing…

High Energy Physics - Phenomenology · Physics 2017-08-23 Jochen Wambach

We study the phase diagram of $SU(N)$ gauge theory in three space-time dimensions with a Chern-Simons term at level $k$, coupled to two sets of fundamental fermions with masses $m_1$ and $m_2$, respectively. The two-dimensional phase…

High Energy Physics - Theory · Physics 2019-10-02 Riccardo Argurio , Matteo Bertolini , Francesco Mignosa , Pierluigi Niro

This contribution presents a brief summary of the recent past efforts to experimentally explore the QCD phase diagram at high baryon chemical potentials through heavy-ion collisions. A few measurements are highlighted to present the current…

Nuclear Experiment · Physics 2020-12-30 J. D. Brandenburg

The two-flavor quark-meson model is used as a low-energy effective model for QCD to study inhomogeneous chiral condensates at finite %temperature $T$ baryon chemical potential $\mu_B$. The parameters of the model are determined by matching…

High Energy Physics - Phenomenology · Physics 2017-10-09 Prabal Adhikari , Jens O. Andersen , Patrick Kneschke

Chiral symmetry restoration at nonzero temperature and quark densities are investigated in the framework of a linear sigma model with N_f=3 light quark flavors. After the derivation of the grand potential in mean-field approximation, the…

High Energy Physics - Phenomenology · Physics 2009-11-19 Bernd-Jochen Schaefer , Mathias Wagner

We use the linear sigma model with two flavors of quarks to study the phase diagram at finite temperature and baryon chemical potential as a function of the vacuum pion mass. Our calculations include thermal fluctuations of both the bosonic…

Nuclear Theory · Physics 2014-11-20 J. I. Kapusta , E. S. Bowman