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We investigate possible finite-volume effects on baryon number susceptibilities of strongly interacting matter. Assuming that a hadronic and a deconfined phase both contribute to the thermodynamic state of a finite system due to…

核理论 · 物理学 2019-01-04 Christian Spieles , Marcus Bleicher , Carsten Greiner

The thermodynamics of hot and dense matter created in heavy-ion collision experiments are usually studied as a system of infinite volume. Here we report on possible effects for considering a finite system size for such matter in the…

高能物理 - 唯象学 · 物理学 2015-04-16 Abhijit Bhattacharyya , Rajarshi Ray , Subhasis Samanta , Subrata Sur

We explore the influence of finite volume effects on baryon number fluctuations in a non-perturbative chiral model. In order to account for soft modes, we use the functional renormalization group in a finite volume, using a smooth regulator…

高能物理 - 唯象学 · 物理学 2017-03-22 Gabor A. Almasi , Robert D. Pisarski , Vladimir V. Skokov

We investigate the effect of a finite volume on the critical behavior of the theory of the strong interaction (QCD) by means of a quark-meson model for two quark flavors. In particular, we analyze the effect of a finite volume on the…

高能物理 - 唯象学 · 物理学 2014-09-17 Ralf-Arno Tripolt , Jens Braun , Bertram Klein , Bernd-Jochen Schaefer

Critical phenomena in phase transitions of strongly interacting matter, governed by quantum chromodynamics, are inherently encoded in the fluctuations of conserved charges. In this work, we study the net-baryon number density fluctuations,…

高能物理 - 唯象学 · 物理学 2024-07-16 Michał Marczenko

The effects of a finite system volume on thermodynamic quantities, such as the pressure, energy density, specific heat, speed of sound, conserved charge susceptibilities and correlations, in hot and dense strongly interacting matter are…

高能物理 - 唯象学 · 物理学 2024-01-12 Somenath Pal , Anton Motornenko , Volodymyr Vovchenko , Abhijit Bhattacharyya , Jan Steinheimer , Horst Stoecker

The critical behaviors of quark-hadron phase transition are explored by use of the Ising model adapted for hadron production. Various measures involving the fluctuations of the produced hadrons in bins of various sizes are examined with the…

高能物理 - 唯象学 · 物理学 2009-10-31 R. C. Hwa , Y. Wu

The phase structure of baryonic matter is investigated with focus on the role of fluctuations beyond the mean-field approximation. The prototype test case studied is the chiral nucleon-meson model, with added comments on the chiral…

核理论 · 物理学 2021-08-04 Len Brandes , Norbert Kaiser , Wolfram Weise

An effective model is introduced to illustrate finite volume effects beyond the usual momentum space constraints. The fluctuations of the chiral order parameter and the net baryon number, as well as their scaling properties, are…

高能物理 - 唯象学 · 物理学 2025-10-29 Győző Kovács , Pok Man Lo , Krzysztof Redlich , Chihiro Sasaki

Fluctuations provide a powerful tool for elucidating the nature of strongly-interacting matter in the QCD phase diagram. In heavy-ion-collision systems, the net-particle number fluctuations are captured at the moment of chemical freeze-out.…

核理论 · 物理学 2023-03-15 Jamie M. Karthein

We study the deconfinement of hadronic matter into quark matter in a protoneutron star focusing on the effects of the finite size on the formation of just-deconfined color superconducting quark droplets embedded in the hadronic environment.…

太阳与恒星天体物理 · 物理学 2014-02-24 G. Lugones , A. G. Grunfeld

The size of the average fluctuations of net baryon number and electric charge in a finite volume of hadronic matter differs widely between the confined and deconfined phases. These differences may be exploited as indicators of the formation…

高能物理 - 唯象学 · 物理学 2009-10-09 Masayuki Asakawa , Ulrich Heinz , Berndt Muller

We investigate the impact of the finite volume and the thermal fluctuations on the Critical End Point of the QCD phase diagram. To do so, we implement the super statistics framework with Gamma, $F$, and log-normal distributions and their…

We present results for the volume dependence of baryon number fluctuations in the vicinity of the (conjectured) critical endpoint of QCD. They are extracted from the nonperturbative quark propagator that is obtained as a solution to a set…

高能物理 - 唯象学 · 物理学 2023-09-07 Julian Bernhardt , Christian S. Fischer , Philipp Isserstedt

In this work we study the consequences of a longitudinal Bjorken expansion and a Hubble-like temperature cooling scenario on a 1+1D non-linear model of the diffusive dynamics of fluctuations in the net-baryon density. The equilibrium…

核理论 · 物理学 2023-02-01 Grégoire Pihan , Marcus Bluhm , Masakiyo Kitazawa , Taklit Sami , Marlene Nahrgang

We consider the phase diagram of hadronic matter as a function of temperature, T , and baryon chemical potential, mu. Currently the dominant paradigm is a line of first order transitions which ends at a critical endpoint. In this work we…

高能物理 - 唯象学 · 物理学 2019-05-08 Robert D. Pisarski , Vladimir V. Skokov , Alexei M. Tsvelik

We have studied the grand potential and phase transitions of an inhomogeneous finite volume spherical quark system. First the finite volume effects are considered by applying the multiple reflection expansion method which is an…

高能物理 - 唯象学 · 物理学 2022-04-27 Xiaogang Li , Song Shu , Jia-Rong Li

Fluctuations and correlations of the net-baryon number play an important role in exploring critical phenomena in phase transitions of strongly interacting matter governed by Quantum chromodynamics (QCD). In this work, we use the parity…

高能物理 - 唯象学 · 物理学 2024-01-31 Volker Koch , Michał Marczenko , Krzysztof Redlich , Chihiro Sasaki

We study the finite size effects on the thermal deconfinement phase transition from the hadronic gas phase to the QGP phase, using a simple thermodynamic model based on the coexistence of confined and deconfined phases in a finite volume.…

高能物理 - 唯象学 · 物理学 2007-05-23 M. Ladrem , A. Ait-El-Djoudi , G. Yezza

The time evolution of the expanding Colorless Partonic Matter, created in Ultra-Relativistic Heavy Ion Collisions and undergoing the confining phase transition towards a Hadronic Gas, is discussed in the context of a unified model combining…

高能物理 - 唯象学 · 物理学 2020-10-21 Salah Cherif , Madjid Lakhdar Hamou Ladrem , Z. Z. Alfull , M. A. A. Ahmed
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