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相关论文: Curvature of the chiral pseudo-critical line in QC…

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We determine the curvature of the pseudo-critical line of strong interactions by means of numerical simulations at imaginary chemical potentials. We consider $N_f=2+1$ stout improved staggered fermions with physical quark masses and the…

高能物理 - 格点 · 物理学 2015-09-16 Claudio Bonati , Massimo D'Elia , Marco Mariti , Michele Mesiti , Francesco Negro , Francesco Sanfilippo

We determine the curvature of the pseudo-critical line of $N_f = 2 + 1$ QCD with physical quark masses via Taylor expansion in the quark chemical potentials. We adopt a discretization based on stout improved staggered fermions and the tree…

高能物理 - 格点 · 物理学 2018-09-26 Claudio Bonati , Massimo D'Elia , Francesco Negro , Francesco Sanfilippo , Kevin Zambello

We determine the curvature of the (pseudo)critical line of QCD with $n_f$=2+1 staggered fermions at nonzero temperature and quark density, by analytic continuation from imaginary chemical potentials. Monte Carlo simulations are performed…

高能物理 - 格点 · 物理学 2014-04-30 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We determine the continuum limit of the curvature of the pseudocritical line of QCD with $n_f$=2+1 staggered fermions at nonzero temperature and quark density. We perform Monte Carlo simulations at imaginary baryon chemical potentials,…

高能物理 - 格点 · 物理学 2016-01-27 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We determine the phase diagram of QCD on the \mu-T plane for small to moderate chemical potentials. Two transition lines are defined with two quantities, the chiral condensate and the strange quark number susceptibility. The calculations…

高能物理 - 格点 · 物理学 2011-04-05 G. Endrodi , Z. Fodor , S. D. Katz , K. K. Szabo

We determine the (pseudo)critical lines of QCD with two degenerate staggered fermions at nonzero temperature and quark or isospin density, in the region of imaginary chemical potentials; analytic continuation is then used to prolongate to…

高能物理 - 格点 · 物理学 2013-05-30 P. Cea , L. Cosmai , M. D'Elia , A. Papa , F. Sanfilippo

We present a determination of the curvature $\kappa$ of the chiral pseudocritical line from $N_f=2+1$ lattice QCD at the physical point obtained by adopting the Taylor expansion approach. Numerical simulations performed at three lattice…

高能物理 - 格点 · 物理学 2019-02-20 Claudio Bonati , Massimo D'Elia , Francesco Negro , Francesco Sanfilippo , Kevin Zambello

We present results on the curvature of the critical line of QCD with 2+1 HISQ fermions at nonzero temperature and quark density obtained by analytic continuation from imaginary chemical potentials. Monte Carlo simulations are performed by…

高能物理 - 格点 · 物理学 2014-10-10 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We determine the curvature of the phase transition line in the mu-T plane through an analysis of various observables, including the Polyakov loop, the quark number susceptibilities and the susceptibility of the chiral condensate. The second…

高能物理 - 格点 · 物理学 2010-01-21 G. Endrodi , Z. Fodor , S. D. Katz , K. K. Szabo

We exploit analytic continuation to prolongate to the region of real chemical potentials the (pseudo)critical lines of QCD with two degenerate staggered fermions at nonzero temperature and quark or isospin density obtained in the region of…

高能物理 - 格点 · 物理学 2012-10-25 P. Cea , L. Cosmai , M. D'Elia , A. Papa , F. Sanfilippo

We investigate the phase structure of three-flavor QCD in the presence of finite quark chemical potential $\mu/T\lesssim1.2$ by using the non-perturbatively $O(a)$ improved Wilson fermion action on lattices with a fixed temporal extent…

高能物理 - 格点 · 物理学 2015-12-30 Xiao-Yong Jin , Yoshinobu Kuramashi , Yoshifumi Nakamura , Shinji Takeda , Akira Ukawa

We study QCD with (2+1)-HISQ fermions at nonzero temperature and nonzero imaginary baryon chemical potential. Monte Carlo simulations are performed using the MILC code along the line of constant physics with a light to strange mass ratio of…

高能物理 - 格点 · 物理学 2015-10-26 Paolo Cea , Leonardo Cosmai , Alessandro Papa

We present the crossover line between the quark gluon plasma and the hadron gas phases for small real chemical potentials. First we determine the effect of imaginary values of the chemical potential on the transition temperature using…

高能物理 - 格点 · 物理学 2015-11-13 R. Bellwied , S. Borsanyi , Z. Fodor , J. Günther , S. D. Katz , C. Ratti , K. K. Szabo

We determine the pseudo-critical couplings at imaginary chemical potentials by high-statistics Monte Carlo simulations of QCD with four degenerate quarks at non-zero temperature and baryon density by the method of analytic continuationan.…

高能物理 - 格点 · 物理学 2010-12-23 P. Cea , L. Cosmai , M. D'Elia , A. Papa

We study the scaling behavior of the (2+1)-flavor QCD crossover region towards the chiral limit with smaller-than-physical light quark mass gauge ensembles, generated using the HISQ fermion discretization. At zero chemical potential, we…

高能物理 - 格点 · 物理学 2022-07-14 Olaf Kaczmarek , Frithjof Karsch , Anirban Lahiri , Sheng-Tai Li , Mugdha Sarkar , Christian Schmidt , Philipp Scior

The curvature which characterizes the QCD phase transition at finite temperature and small values of the chemical potential is accessible to lattice simulations. The results for this quantity which have been obtained by several different…

高能物理 - 唯象学 · 物理学 2011-04-20 Bertram Klein , Jens Braun , Bernd-Jochen Schaefer

We determined the curvature of the phase transition line in the mu-T plane using a Taylor expansion in mu. The Polyakov loop and the strange quark number susceptibility were measured to locate the pseudocritical line. The analysis was…

高能物理 - 格点 · 物理学 2009-04-14 Zoltán Fodor , Christa Guse , Sándor D. Katz , Kálmán K. Szabó

We present preliminary results from an ongoing calculation to determine the curvature of the chiral phase transition line in the chiral limit along the light-light, light-strange and strange-strange chemical potential directions. We do this…

高能物理 - 格点 · 物理学 2019-08-14 Prasad Hegde , Heng-Tong Ding

We determine the chiral phase transition line in (2+1)-flavor QCD for small values of the light quark chemical potential. We show that for small values of the chemical potential the curvature of the phase transition line can be deduced from…

高能物理 - 格点 · 物理学 2011-02-01 O. Kaczmarek , F. Karsch , E. Laermann , C. Miao , S. Mukherjee , P. Petreczky , C. Schmidt , W. Soeldner , W. Unger

We show that for small values of the chemical potential the curvature of the phase transition line can be deduced from an analysis of scaling properties of the chiral condensate and its susceptibilities. We make use of a recent analysis of…

高能物理 - 格点 · 物理学 2010-12-13 Christian Schmidt , Swagato Mukherjee
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