中文
相关论文

相关论文: Spectral function and quark diffusion constant in …

200 篇论文

We present recent results on the critical and pseudo-critical temperatures in (2+1)-flavor QCD with a physical strange quark mass and two degenerate light quark masses extrapolated to the chiral limit and tuned to the physical value,…

高能物理 - 格点 · 物理学 2019-05-13 Frithjof Karsch

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

In this article, we study the light-flavor scalar and axial-vector diquark states in the vacuum and in the nuclear matter using the QCD sum rules in an systematic way, and make reasonable predictions for their masses in the vacuum and in…

高能物理 - 唯象学 · 物理学 2017-01-25 Zhi-Gang Wang

In relation to the fluctuation-dissipation theorem, we discuss a time-dependent notion of spectral function and effective temperature. Extending recent results from arXiv:1212.6066, we work out these quantities in a two-dimensional…

高能物理 - 理论 · 物理学 2013-04-01 Alice Bernamonti , Ben Craps , Joris Vanhoof

To quantify the universal properties of chiral phase transition in (2+1)-flavor QCD, we use an improved, renormalized order parameter for the chiral symmetry breaking. We construct ratios of this divergence-free order parameter from its…

高能物理 - 格点 · 物理学 2026-02-09 Sabarnya Mitra , Frithjof Karsch

Near the critical temperature of the chiral phase transition, a collective excitation due to fluctuation of the chiral order parameter appears. We investigate how it affects the quark spectrum near but above the critical temperature. The…

高能物理 - 唯象学 · 物理学 2007-05-23 Masakiyo Kitazawa , Teiji Kunihiro , Yukio Nemoto

We extend the holographic V-QCD model by introducing a charged scalar field sector to represent the condensation of paired quark matter in the deconfined phase. By incorporating this new sector into the previously established framework for…

高能物理 - 理论 · 物理学 2025-05-13 Jesús Cruz Rojas , Tuna Demircik , Christian Ecker , Matti Järvinen

We combine the recently introduced Non-Abelian Quasi-Particle Model (NAQPM) for gluons with an ideal Fermi gas of three quark species with the aim to describe the equation of state (energy density vs. temperature) of $2+1$ - flavour…

高能物理 - 唯象学 · 物理学 2025-12-09 Eleftherios P. Politis , Antonis Tsapalis , Fotios K. Diakonos

We present a fully back-reacted Einstein--Maxwell--Dilaton--flavor model with dynamical light and strange sectors, calibrated to lattice QCD using a machine-learning--assisted spectral method. The model reproduces the 2+1-flavor equation of…

高能物理 - 唯象学 · 物理学 2025-12-24 Jin-Yang Shen , Xin-Yi Liu , Jin-Rui Wu , Yue-Liang Wu , Zhen Fang

We investigate the QCD chiral phase transition at high baryon number density within the linear quark meson model for two flavors. The method we employ is based on an exact renormalization group equation for the free energy. Truncated…

高能物理 - 唯象学 · 物理学 2010-02-04 J. Berges , D. -U. Jungnickel , C. Wetterich

We report on a lattice investigation of heavy quark momentum diffusion within the pure SU(3) plasma above the deconfinement transition with the quarks treated to leading order in the heavy mass expansion. We measure the relevant…

高能物理 - 格点 · 物理学 2015-04-29 Thomas Neuhaus

For quantifying the universal properties of the chiral phase transition in QCD through numerical calculations on a discrete space-time lattice, one needs to perform controlled extrapolations to the continuum and infinite-volume limits…

高能物理 - 格点 · 物理学 2025-08-28 Sabarnya Mitra , Frithjof Karsch

The chiral symmetry breaking ($\chi_{SB}$) is one of the most fundamental problems in QCD. In this paper, we calculate quark condensation analytically in a holographic QCD model dual to the Einstein-Maxwell-Dilaton (EMD) system coupled to a…

高能物理 - 理论 · 物理学 2021-02-24 Meng-Wei Li , Yi Yang , Pei-Hung Yuan

We analyze (using a chiral effective Lagrangian model) the scalar and pseudoscalar meson mass spectrum of QCD at finite temperature, above the chiral transition at $T_c$, looking, in particular, for signatures of a possible breaking of the…

高能物理 - 唯象学 · 物理学 2014-10-15 Enrico Meggiolaro

We study the low energy dynamics of pions in a gravity dual of chiral symmetry breaking. The string theory construction consists of a probe D7 brane in the Constable Myers non-supersymmetric background, which has been shown to describe…

高能物理 - 理论 · 物理学 2009-11-10 Nick Evans , Jonathan P. Shock

This study reexamines the spectroscopic parameters of light-flavor diquarks within the framework of quantum chromodynamics sum rules (QCDSR) using the inverse matrix method. Conventional QCDSR analyses are based on assumptions such as…

高能物理 - 唯象学 · 物理学 2025-02-28 Halil Mutuk

We establish a holographic QCD model for four flavors, where a light scalar field $X$ and a heavy scalar field $H$ are introduced, separately. The $H$ field is responsible for the breaking of $SU(N_f=4)$ to $SU(N_f=3)$. The ground state and…

高能物理 - 唯象学 · 物理学 2022-02-02 Yidian Chen , Mei Huang

The phase structure of QCD with various number of flavors is studied for Wilson quarks. For the case of $N_F=3$ we find that the finite temperature deconfining transition is of first order in the chiral limit on an $N_t=4$ lattice. Together…

高能物理 - 格点 · 物理学 2016-08-14 Y. Iwasaki , K. Kanaya , S. Sakai , T. Yoshié

We consider a holographic model constructed from the intersecting brane configuration D4-$\bar{\rm{D4}}$/D4 in noncritical string theory. We study the chiral phase diagram of this holographic QCD-like model with a finite baryon chemical…

高能物理 - 理论 · 物理学 2015-05-18 Sheng-liang Cui , Yi-hong Gao , Wei-shui Xu

As a top-down holographic approach, the D4/D8 model is expected to be the holographic version of QCD since it almost includes all the elementary features of QCD based on string theory. In this manuscript, we review the fundamental…

高能物理 - 理论 · 物理学 2023-06-12 Si-wen Li , Xiao-tong Zhang
‹ 上一页 1 8 9 10 下一页 ›