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The PYTHIA8/ANGANTYR model for heavy ion collisions was recently updated with a mechanism for \textit{global colour reconnection}. The colour reconnection model used is QCD colour algebra inspired and enhances baryon production due to the…

High Energy Physics - Phenomenology · Physics 2024-03-26 Christian Bierlich , Gösta Gustafson , Leif Lönnblad , Harsh Shah

We present a lattice QCD calculation of the charge diffusion coefficient, the electrical conductivity and various susceptibilities of conserved charges, for a range of temperatures below and above the deconfinement crossover. The…

High Energy Physics - Lattice · Physics 2015-06-23 Gert Aarts , Chris Allton , Alessandro Amato , Pietro Giudice , Simon Hands , Jon-Ivar Skullerud

The two-flavor color superconductivity is examined over a wide range of baryon density with a single model. To study the structural change of Cooper pairs, quark correlation in the color superconductor is calculated both in the momentum…

High Energy Physics - Phenomenology · Physics 2017-08-23 H. Abuki , T. Hatsuda , K. Itakura

We estimate the momentum diffusion coefficient of a heavy quark within a pure SU(3) plasma at a temperature of about 1.5Tc. Large-scale Monte Carlo simulations on a series of lattices extending up to 192^3*48 permit us to carry out a…

High Energy Physics - Lattice · Physics 2015-12-14 A. Francis , O. Kaczmarek , M. Laine , T. Neuhaus , H. Ohno

We report on the progress of our study on the color-electric correlation functions under gradient flow on the lattice. This calculation is the first step of our long-term project to estimate a series of important transport coefficients, of…

High Energy Physics - Lattice · Physics 2020-01-01 Luis Altenkort , Olaf Kaczmarek , Lukas Mazur , Hai-Tao Shu

The propagation of colored quarks through strongly interacting systems, and their subsequent evolution into color-singlet hadrons, are phenomena that showcase unique facets of Quantum Chromodynamics (QCD). Medium-stimulated gluon…

High Energy Physics - Phenomenology · Physics 2014-04-21 W. K. Brooks , H. Hakobyan , M. Arratia , C. Peña

We study vacuum masses of charmonia and the charm-quark diffusion coefficient in the quark-gluon plasma based on the spectral representation for meson correlators. To calculate the correlators, we solve the quark gap equation and the…

Nuclear Theory · Physics 2014-08-29 Si-xue Qin , Dirk H. Rischke

We investigate the influence of dynamical charm quarks on observables that depend explicitly on the charm quark fields, like the pseudo-scalar and vector masses $m_{\eta_c}$ and $m_{J/\psi}$, the hyperfine splitting…

High Energy Physics - Lattice · Physics 2018-11-14 Salvatore Cali , Francesco Knechtli , Tomasz Korzec

We present a self-consistent framework for heavy-quark transport in the quark-gluon plasma across the QCD crossover region. By synthesizing perturbative and non-perturbative interactions into a unified interaction kernel, we circumvent the…

High Energy Physics - Phenomenology · Physics 2026-04-14 Wu Wang , Yuqi Luo , Fei Sun , Sa Wang , Jungang Deng , Wei Xie , Shuang Li , Kejun Wu

We survey the non-locked color-flavor-spin channels for quark-quark (color superconducting) condensates in QCD, using an NJL model. We also study isotropic quark-antiquark (mesonic) condensates. We make mean-field estimates of the strength…

High Energy Physics - Phenomenology · Physics 2009-11-07 Mark G. Alford , Jeffrey A. Bowers , Jack M. Cheyne , Greig A. Cowan

Quantum Chromodynamics (QCD) is a basic gauge field theory to describe strong interactions. Lattice QCD calculations predict a phase transition from hadronic matter to a deconfined, locally thermalized Quark-Gluon Plasma (QGP) state at high…

Nuclear Experiment · Physics 2007-05-23 Xin Dong

Recent experimental results on the Lambda_c/D^0 ratio in proton-proton collisions have revealed a significant enhancement compared to expectations based on universal fragmentation fractions/functions across different colliding systems, from…

High Energy Physics - Phenomenology · Physics 2023-06-06 Andrea Beraudo , Arturo De Pace , Daniel Pablos , Francesco Prino , Marco Monteno , Marzia Nardi

We consider the production of open charm in heavy ion collisions in the framework of the Color Glass Condensate. In the central rapidity region at RHIC, for the charm quark yield we expect N(coll) (number of collisions) scaling in the…

High Energy Physics - Phenomenology · Physics 2010-11-30 D. Kharzeev , K. Tuchin

In this work we consider the QCD parton saturation models to describe soft interactions at the high energy limit. The total and elastic cross sections as well as the elastic slope parameter are obtained for proton-proton and pion-proton…

High Energy Physics - Phenomenology · Physics 2020-05-06 G. M. Peccini , F. Kopp , M. V. T. Machado , D. A. Fagundes

According to quantum chromodynamics (QCD), matter at ultra-high densities will take the form of a color-superconducting quark liquid, in which there is a condensate of Cooper pairs of quarks near the Fermi surface. I present a review of the…

Nuclear Theory · Physics 2008-11-26 Mark Alford

Matter described by Quantum Chromodynamics (QCD), the theory of strong interactions, may undergo phase transitions when its temperature and the chemical potentials are varied. QCD at finite temperature is studied in the laboratory by…

High Energy Physics - Phenomenology · Physics 2011-06-24 Sourendu Gupta , Xiaofeng Luo , Bedangadas Mohanty , Hans Georg Ritter , Nu Xu

In this paper, we develop models applicable to phenomenological particle physics by using the string analogy of particles. These theories can be used to investigate the phenomenology of confinement, deconfinement, chiral condensate, QGP…

High Energy Physics - Phenomenology · Physics 2023-02-02 Adamu Issifu , Francisco A. Brito

We study the radial distribution function of the color sources (strings) formed in hadronic collisions and the requirements to obtain a liquid. As a repulsive interaction is needed, we incorporate a concentric core in the strings as well as…

High Energy Physics - Phenomenology · Physics 2023-05-22 J. E. Ramírez , Bogar Díaz , C. Pajares

Production of open and hidden charm hadrons in heavy ion collisions is considered within the statistical coalescence model (SCM). Charmed quark-antiquark pairs are assumed to be created at the initial stage of the reaction in hard parton…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. P. Kostyuk

The properties of cold and dense quark matter have been the subject of extensive investigation, especially in the last decade. Unfortunately, we still lack of a complete understanding of the properties of matter in these conditions. One…

High Energy Physics - Phenomenology · Physics 2009-06-25 Massimo Mannarelli
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