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相关论文: Net-baryon multiplicity distribution consistent wi…

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We present lattice QCD results for ratios of net-baryon number cumulants along the pseudo-critical line and compare them with STAR measurements from the RHIC BES-II program. The ratio of first and second order cumulants, $R_{12}^B$, agrees…

高能物理 - 格点 · 物理学 2025-12-02 Jishnu Goswami , Frithjof Karsch

The correlation between baryon number and strangeness elucidates the nature of strongly interacting matter, such as that formed transiently in high-energy nuclear collisions. This diagnostic can be extracted theoretically from lattice QCD…

核理论 · 物理学 2009-02-05 V. Koch , A. Majumder , J. Randrup

We present a new global QCD analysis of nuclear parton distribution functions and their uncertainties. In addition to the most commonly analyzed data sets for the deep-inelastic scattering of charged leptons off nuclei and Drell-Yan…

高能物理 - 唯象学 · 物理学 2013-05-30 Daniel de Florian , Rodolfo Sassot , Marco Stratmann , Pia Zurita

The entropy per baryon is studied in the strong coupling large dimension $d$ limit of lattice QCD with staggered fermions. The partition function is calculated for non-zero chemical potential and temperature using the $1/d$ expansion. It is…

高能物理 - 格点 · 物理学 2016-08-31 Neven Bilic , Jean Cleymans

We review the calculation of moments of both the polarized and unpolarized parton distribution functions of the nucleon in lattice QCD, and in particular their extrapolation to the physical region. We also discuss the reconstruction of the…

高能物理 - 格点 · 物理学 2008-11-26 W. Detmold , W. Melnitchouk , A. W. Thomas

In this document, we summarize the status and challenges of calculating parton physics in lattice QCD for the US Particle Physics Community Planning Exercise (a.k.a. "Snowmass"). While PDF-moments calculations have been very successful and…

The most striking feature of quark distribution functions transformed to the longitudinal distance representation is the recognizable separation of small and large longitudinal distances. While the former are responsible for the average…

高能物理 - 唯象学 · 物理学 2009-10-28 L. Mankiewicz , T. Weigl

Generalized parton distributions encompass a wealth of information concerning the three-dimensional quark and gluon structure of the nucleon, and thus provide an ideal focus for the study of hadron structure using lattice QCD. The special…

We investigate the Taylor expansion of the baryon number susceptibility, and hence, pressure, in a series in the baryon chemical potential (mu_B) through a lattice simulation with light dynamical staggered quarks at a finer lattice cutoff…

高能物理 - 格点 · 物理学 2008-12-30 R. V. Gavai , Sourendu Gupta

We compare recent lattice QCD calculations of higher order cumulants of net-strangeness fluctuations with hadron resonance gas (HRG) model calculations. Up to the QCD transition temperature Tc=( 154 +/- 9) MeV we find good agreement between…

高能物理 - 格点 · 物理学 2013-12-31 Frithjof Karsch

High moments of conserved quantities such as net-baryon, net-electric charge, and net-strangeness in heavy-ion collisions are sensitive to fluctuations caused by the QCD critical point (CP). The event-by-event analysis of high moments of…

核实验 · 物理学 2025-11-06 Xin Zhang , Yu Zhang , Xiaofeng Luo , Nu Xu

Recent lattice QCD calculations of the baryon spectrum are outlined.

高能物理 - 格点 · 物理学 2017-08-23 Robert G. Edwards

Fluctuations of conserved quantities in heavy-ion collisions have been argued to be diagnostic tools for the nature of the produced phase. These can be related to the predictions of quark number susceptibilities (QNS) from lattice QCD.…

高能物理 - 唯象学 · 物理学 2009-11-11 Rajiv V. Gavai , Sourendu Gupta

We present the unpolarized and helicity parton distribution functions calculated within lattice QCD simulations using physical values of the light quark mass. Non-perturbative renormalization is employed and the lattice data are converted…

The freeze-out curve, which describes a vast amount of precise experimental data in heavy ion collisions, provides a relation between the colliding energy and the thermodynamical parameters of the fireball. The variance, skew and kurtosis…

高能物理 - 唯象学 · 物理学 2011-12-23 Rajiv V. Gavai

The relevance of higher order cumulants of net baryon number fluctuations for the analysis of freeze-out and critical conditions in heavy-ion collisions at LHC and RHIC is addressed. The sign structure of the higher order cumulants in the…

高能物理 - 唯象学 · 物理学 2012-12-06 Bernd-Jochen Schaefer , Mathias Wagner

We present realistic equations of state for QCD matter at vanishing net-baryon density which embed recent lattice QCD results at high temperatures combined with a hadron resonance gas model in the low-temperature, confined phase. In the…

高能物理 - 唯象学 · 物理学 2014-07-17 M. Bluhm , P. Alba , W. Alberico , A. Beraudo , C. Ratti

The multiplicity distribution of the gluons produced at the high energy is evaluated in BFKL approach. The distribution has Poisson form that can explain experimentally observed KNO scaling.

高能物理 - 唯象学 · 物理学 2020-07-15 G. H. Arakelyan , Yu. M. Shabelski , A. G. Shuvaev

We simulate lattice QCD with two flavors of Wilson fermions at imaginary baryon chemical potential. Results for the baryon number density computed in the confining and deconfining phases at imaginary baryon chemical potential are used to…

We present various order moments (Variance ($\sigma^2$), Skewness($S$), Kurtosis($\kappa$)) of net-proton multiplicity distributions in Au+Au collisions from the first phase of RHIC beam energy scan ({\sNN}=7.7$-$200 GeV). The measurements…

核实验 · 物理学 2019-08-13 Xiaofeng Luo