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The interest in studying heavy-flavor hadronization in high-energy nuclear collisions is twofold. On one hand hadronization represents a source of systematic uncertainties in phenomenological attempts of extracting heavy-flavor transport…

High Energy Physics - Phenomenology · Physics 2023-07-12 Andrea Beraudo

In this review paper, I present a study of the structure of the hadrons computed in the covariant Nambu-Jona-Lasinio model as the chiral effective quark theory of QCD. I describe how the NJL model is treated to imitate the spontaneous…

High Energy Physics - Phenomenology · Physics 2026-04-14 Parada T. P. Hutauruk

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

While string models describe initial state radiation in ultra-relativistic nuclear collisions well, they mainly differ in their end-point positions of the strings in spatial rapidity. We present a generic model where wounded constituents…

Nuclear Theory · Physics 2019-06-11 Martin Rohrmoser , Wojciech Broniowski

We present a systematic study of the kaon to pion multiplicity ratios (K+/pi+ and K-/pi-) in heavy-ion collisions from AGS to RHIC energy using the Relativistic Quantum Molecular Dynamics (RQMD) model. The model satisfactorily describes the…

Nuclear Theory · Physics 2008-11-26 F. Wang , H. Liu , H. Sorge , N. Xu , J. Yang

Nuclear gluon modifications are the least constrained component of current global fits to nuclear parton distributions, due to the inadequate constraining power of presently available experimental data from nuclear deep inelastic scattering…

High Energy Physics - Phenomenology · Physics 2010-07-01 Adeola Adeluyi , Trang Nguyen , Bao-An Li

We investigate an effective Hamiltonian for QCD at large s, in which longitudinal gauge degrees of freedom are suppressed, but not eliminated. In an axial gauge the effective field theory is a set of coupled (1+1)-dimensional…

High Energy Physics - Phenomenology · Physics 2008-11-26 Peter Orland

We study thermodynamic characteristica of ultra-relativistic Au+Au collisions at RHIC energy sqrt(s) = 200 GeV within the framework of a microscopic transport model, namely the quark-gluon string model (QGSM). The temporal evolution of the…

Nuclear Theory · Physics 2009-11-11 J. Bleibel , G. Burau , Amand Faessler , C. Fuchs

The description of hadron production in relativistic heavy-ion collisions in the statistical hadronization model is very good, over a broad range of collision energy. We outline this both for the light (u, d, s) and heavy (charm) quarks and…

Nuclear Theory · Physics 2021-01-15 A. Andronic , P. Braun-Munzinger , K. Redlich , J. Stachel

The transition from hadronic to partonic degrees of freedom in the course of a relativistic heavy-ion collision is described by the microscopic covariant Parton-Hadron-String Dynamics (PHSD) transport approach. Studying Pb+Pb reactions from…

Nuclear Theory · Physics 2010-07-19 E. L. Bratkovskaya , O. Linnyk , V. P. Konchakovski , M. I. Gorenstein , W. Cassing

In this study we investigate the dynamics of strongly interacting parton-hadron matter by calculating the centrality dependence of direct photons produced in Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV within the Parton-Hadron-String…

Nuclear Theory · Physics 2014-12-10 W. Cassing , O. Linnyk , E. L. Bratkovskaya

The parton-to-hadron transition, known as hadronization, is dominated by non-perturbative Quantum Chromodynamics (QCD) effects and thus challenging to study from first-principle calculations. On the other hand, experimental studies of…

Nuclear Experiment · Physics 2026-02-20 Youqi Song

An introduction to dynamical microscopic models of hadronic and nuclear interactions is presented. Special emphasis is put in the relation between multiparticle production and total cross-section contributions. In heavy ion collisions, some…

High Energy Physics - Phenomenology · Physics 2015-06-25 A. Capella

Hadron inclusive spectra in pp collisions are analyzed within the modified quark-gluon string model including both the longitudinal and transverse motion of quarks in the proton in the wide region of initial energies. The self-consistent…

High Energy Physics - Phenomenology · Physics 2015-05-27 V. A. Bednyakov , A. A. Grinyuk , G. I. Lykasov , M. Poghosyan

In the present paper we investigate classical dynamics of the Nambu-Goto string with the Gauss-Bonnet term in the action and point-like masses at the ends in the context of effective QCD string. The configurations of rigidly rotating string…

High Energy Physics - Theory · Physics 2009-10-30 Leszek Hadasz , Tomasz Rog

An extension of Hadron Resonance Gas (HRG) model is constructed to include interactions using relativistic virial expansion of partition function. The non-interacting part of the expansion contains all the stable baryons and mesons and the…

Nuclear Theory · Physics 2018-05-11 Ashutosh Dash , Subhasis Samanta , Bedangadas Mohanty

We discuss several examples of how the transverse spatial distribution of partons in the nucleon, as well as multiparton correlations, can be probed by observing hard processes (dijets) in high-energy pp (pbar p) and pA (dA) collisions.…

High Energy Physics - Phenomenology · Physics 2014-11-18 L. Frankfurt , M. Strikman , C. Weiss

Soft multiparticle production processes in hadronic collisions are considered in the framework of the Quark-Gluon Strings Model and the model predictions are compared with data from SppS and Tevatron. Predictions for LHC energies are given.

High Energy Physics - Phenomenology · Physics 2014-11-20 A. B. Kaidalov , M. G. Poghosyan

We propose a holographic model for dilepton production in proton-proton collisions based on the exchange of vector mesons. The holographic hard wall model is used to describe the dynamics and interactions of vector mesons and baryons. We…

High Energy Physics - Theory · Physics 2011-07-06 C. A. Ballon Bayona , Henrique Boschi-Filho , Nelson R. F. Braga

We report predictions for the transverse momentum ($p_T$) spectra of $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ in various collision centrality from Au + Au collisions at beam energies ($E_{lab}$) of 6.7, 8, 11, and 25 A~GeV using a…

Nuclear Theory · Physics 2026-04-08 Towseef Bhat , Vipul Bairathi , Lokesh Kumar , Sonia Kabana