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Related papers: Collective effects in central heavy-ion collisions

200 papers

We discuss a model for the energy distribution and the early space-time evolution of a heavy ion collision. We estimate the gluon field generated in the wake of hard processes and through primordial fluctuations of the color charges in the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Rainer J. Fries , Joseph I. Kapusta , Yang Li

We consider the propagation of heavy quarks through a dense, hydrodynamically flowing QCD medium, representative of the quark-gluon plasma formed in ultrarelativistic heavy-ion collisions. Working in the high-energy limit, we identify two…

High Energy Physics - Phenomenology · Physics 2025-12-16 João Barata , Matvey V. Kuzmin , Xoán Mayo López , Andrey V. Sadofyev , Carlos A. Salgado

We study the transverse momentum spectra of identified particles in ultrarelativistic collisions of large and small collision systems. In order to isolate information contained in the momentum dependence, we propose to scale the spectra by…

We critically discuss fragmentation of quark or antiquark to massive particles (mesons or baryons) in proton-proton collisions. Both heavy and light quark/antiquark fragmentations are discussed using universal $z$-dependent fragmentation…

High Energy Physics - Phenomenology · Physics 2020-02-19 Rafal Maciula , Antoni Szczurek

We investigate the impact of very strong small x gluon fields in colliding nucleons at LHC energies on the interaction of valence quarks. We find that in the range of small impact parameters, which contribute significantly to the production…

High Energy Physics - Phenomenology · Physics 2007-12-20 H. J. Drescher , M. Strikman

Starting with the Strongly Correlated Quark Model of a hadron structure, SCQM, we demonstrate how the properties of mesons and baryons are modified in a hot and dense nuclear environment. These in-medium modifications can lead to the…

Nuclear Theory · Physics 2019-05-01 G. Musulmanbekov

We describe the hadronization of quark matter assuming that quarks creating hadrons coalesce from a continuous mass distribution. The pion and antiproton spectrum as well as the momentum dependence of the antiproton to pion ratio are…

Nuclear Theory · Physics 2009-11-11 J. Zimanyi , P. Levai , T. S. Biro

Collisions between heavy nuclei at the Relativistic Heavy Ion Collider liberate from the nuclear wavefunction of order 10,000 gluons, quarks and antiquarks. The system is dominated by gluons and up and down (anti) quarks. Heavy quarks,…

Nuclear Theory · Physics 2007-05-23 J. L. Nagle

The universality of electric charge as a quantum number allows thermoelectric properties to manifest across diverse systems, starting from a hot quantum chromodynamic matter in heavy-ion collisions at a high energy scale to semiconductors…

High Energy Physics - Phenomenology · Physics 2026-02-20 Kamaljeet Singh , Kshitish Kumar Pradhan , Raghunath Sahoo

Recent measurements of particle correlations and the spectra of hadrons at both RHIC and the LHC are suggestive of hydrodynamic behavior in very small collision systems (p+Pb, d+Au and p+p collisions). The measurements are both…

Nuclear Theory · Physics 2014-03-28 Anne M. Sickles

Chemical non-equilibrium version of the statistical hadronization model combined with a single-freeze-out scenario is used to analyze the transverse-momentum spectra of pions, kaons and protons produced in heavy-ion collisions at sqrt(sNN)…

Nuclear Theory · Physics 2014-07-22 Viktor Begun , Wojciech Florkowski , Maciej Rybczynski

Linear polarization of gluons inside unpolarized hadrons affects the transverse momentum distribution of produced spin-0 particles, such as of the Higgs or (pseudo-)scalar quarkonium states at LHC. Despite the currently unknown amount of…

High Energy Physics - Phenomenology · Physics 2015-10-21 Daniël Boer

Relativistic light-front bound-state equations for mesons and baryons can be constructed in the chiral limit from the supercharges of a superconformal algebra which connect baryon and meson spectra. Quark masses break the conformal…

High Energy Physics - Phenomenology · Physics 2015-10-14 Hans Gunter Dosch , Guy F. de Teramond , Stanley J. Brodsky

The measured transverse momentum spectra and HBT correlations of bulk (i.e. low $p_T$) matter can be well explained by assuming that the soft sector of particles produced in ultrarelativistic heavy-ion collisions is (approximately)…

High Energy Physics - Phenomenology · Physics 2009-11-11 Thorsten Renk , Jorg Ruppert

We get the distributions of shower partons initiated by heavy quarks $c$ and $b$ by studying the fragmentation functions in the framework of the recombination model. The transverse momentum spectra of heavy flavored mesons are predicted…

High Energy Physics - Phenomenology · Physics 2011-06-13 R Peng , C B Yang

The dipole cross-section behavior for protons and nuclei is analyzed with and without considering the heavy quark masses in the Bjorken variable $x$ using the Kharzeev-Levin-Nardi (KLN) model of low $x$ gluon distributions. The Color Glass…

High Energy Physics - Phenomenology · Physics 2025-04-30 G. R. Boroun

We present the evidences for the existence of a universal scaling behavior of the production of $\pi^0$ at all transverse momenta in heavy-ion collisions at all centralities and all collision energies. The corresponding scaling behavior of…

Nuclear Theory · Physics 2008-11-26 Rudolph C. Hwa , C. B. Yang

Recent results on event-by-event mean transverse momentum, $\mpt$, fluctuations in ultra-relativistic heavy ion collisions are briefly reviewed. We conclude that the observed fluctuations are in a rough agreement with that expected for the…

Nuclear Theory · Physics 2007-05-23 Sergei A. Voloshin

We estimate the energy loss distribution and investigate the quenching of hadron spectra in ultrarelativistic heavy-ion collisions due to the collisional energy loss of energetic partons from hard parton collisions in the initial stage.

High Energy Physics - Phenomenology · Physics 2007-05-23 Munshi G. Mustafa , Markus H. Thoma

The nuclear wave-function is dominated at low- and medium-x by gluons. As the rapid growth of the gluon distribution towards low x, as derived from current theoretical estimates, would violate unitarity, there must be a mechanism that tames…

Nuclear Experiment · Physics 2019-08-13 M. A. C. Lamont