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Due to the finite size effects, the localisation of the phase transition in finite systems and the determination of its order, become an extremely difficult task, even in the simplest known cases. In order to identify and locate the finite…

高能物理 - 唯象学 · 物理学 2015-10-28 M. Ladrem , M. A. A. Ahmed , Z. Al-Full , S. Cherif

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

We study cumulants of the chiral order parameter as function of beam energy as a possible signal for the presence of a critical end point and first-order phase transition in the QCD phase diagram. We model the expansion of a heavy-ion…

高能物理 - 唯象学 · 物理学 2022-04-21 Christoph Herold , Ayut Limphirat , Poramin Saikham , Marlene Nahrgang

If there is a first-order phase transition in the light quark region of 2+1-flavor finite temperature and density QCD and if the region of the first-order phase transition expands with increasing density as suggested by several studies,…

高能物理 - 格点 · 物理学 2025-02-03 Shinji Ejiri

We study the finite-size effects on the deconfinement phase transition (DPT) of hot and / or dense hadronic matter, using a simple thermodynamic model based on the assumption of coexistence of confined and deconfined phases in a finite…

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

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…

核理论 · 物理学 2015-06-19 Bengt Friman

We study the phase structure of lattice QCD with heavy quarks at finite temperature and density by a histogram method. We determine the location of the critical point at which the first-order deconfining transition in the heavy-quark limit…

高能物理 - 格点 · 物理学 2015-06-17 H. Saito , S. Ejiri , S. Aoki , K. Kanaya , Y. Nakagawa , H. Ohno , K. Okuno , T. Umeda

We study the endpoint of the first order deconfinement phase transition of 2 and 2+1 flavor QCD in the heavy quark region. We perform simulations of quenched QCD and apply the reweighting method to study the heavy quark region. The quark…

The phase diagram of QCD at finite temperature and density and the existence of a critical point are currently very actively researched topics. Although tremendous progress has been made, in the case of two light quark flavors even the…

高能物理 - 唯象学 · 物理学 2008-11-26 Bertram Klein , Jens Braun

We study the finite-size effects for the thermal QCD Deconfinement Phase Transition (DPT), and use a numerical finite size scaling analysis to extract the scaling exponents characterizing its scaling behavior when approaching the…

高能物理 - 唯象学 · 物理学 2009-01-07 M. Ladrem , A. Ait-El-Djoudi

We review recent progress in lattice QCD at finite density. The phase diagram of QCD and the equation of state at finite temperature and density are discussed. In particular, we focus on the critical point terminating a first order phase…

高能物理 - 格点 · 物理学 2009-12-04 Shinji Ejiri

The appearance of the inflection point in the equation of state (EoS) is associated with the second order phase transition. The high cumulants of conserved quantities near the critical point are corresponding to the high derivatives of the…

核理论 · 物理学 2014-04-18 Mingmei Xu , Yuanfang Wu

We extend our previous study of the QCD phase structure in the heavy quark region to non-zero chemical potentials. To identify the critical point where the first order deconfining transition terminates, we study an effective potential…

高能物理 - 格点 · 物理学 2012-02-29 H. Saito , S. Aoki , K. Kanaya , H. Ohno , S. Ejiri , Y. Nakagawa , T. Hatsuda , T. Umeda

We study the end point of the first-order deconfinement phase transition in two and 2+1 flavor QCD in the heavy quark region of the quark mass parameter space. We determine the location of critical point at which the first-order…

In this conference proceeding, I discuss in detail the deconfinement to quark matter that takes place at large densities and/or temperatures. The first-order phase transition that is assumed to appear beyond a critical point gives rise to…

核理论 · 物理学 2018-01-26 Veronica Dexheimer

The deconfinement transition region between hadronic matter and quark-gluon plasma is studied for finite volumes. Assuming simple model equations of state and a first order phase transition, we find that fluctuations in finite volumes…

高能物理 - 唯象学 · 物理学 2008-11-26 C. Spieles , H. Stoecker , C. Greiner

We study the quark mass dependence of the QCD phase transition by an effective potential defined through the distribution function of observables. As a test of the method, we study the first order deconfinement phase transition in the heavy…

高能物理 - 格点 · 物理学 2010-11-23 H. Saito , S. Aoki , K. Kanaya , H. Ohno , S. Ejiri , T. Hatsuda , Y. Maezawa , T. Umeda

We study the color-flavor locked phase of QCD with three massless quarks at high chemical potential and small non zero temperatures. We make use of the recently introduced effective action to describe such a phase. We obtain the exact order…

高能物理 - 唯象学 · 物理学 2009-10-31 R. Casalbuoni , R. Gatto

QCD predicts that strongly interacting matter will undergo a transition from a state of hadronic constituents to a plasma of unbound quarks and gluons. We first survey the conceptual features of this transition and its description in finite…

高能物理 - 唯象学 · 物理学 2011-07-19 Helmut Satz

We determine the location of the critical point where the first-order deconfining transition in the heavy-quark region turns into a crossover in finite-temperature and density lattice QCD with 2+1 flavors of Wilson quarks. Combining a…

高能物理 - 格点 · 物理学 2023-11-21 Shinji Ejiri , Kazuyuki Kanaya , Masakiyo Kitazawa
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