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The diffractive heavy quark cross sections are estimated considering photon-Pomeron ($\gamma \pom$) interactions in hadron - hadron at RHIC, Tevatron, and CERN LHC energies. We assume the validity of the hard diffractive factorization and…

High Energy Physics - Phenomenology · Physics 2015-06-03 V. P. Goncalves , M. M. Machado

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 calculate the balance function for charm in relativistic heavy-ion collisions. The distribution of pairs of charm-anticharm quarks produced in hard processes in the early stages of the nucleus-nucleus collision evolves in the dense…

Nuclear Theory · Physics 2024-02-21 Tribhuban Parida , Piotr Bozek , Sandeep Chatterjee

We present the calculation of the inclusive $x_F$-distributions of charmed hadrons, produced in high-energy $\Sigma^-$-beam. The calculation is based on the modified mechanism of charmed quarks fragmentation as well as on the mechanism of…

High Energy Physics - Phenomenology · Physics 2009-10-31 A. K. Likhoded , S. R. Slabospitsky

Heavy-flavor hadrons produced in ultra-relativistic heavy-ion collisions are a sensitive probe for studying hadronization mechanisms of the quark-gluon-plasma. In this work, we survey how different transport models for the simulation of…

Asymmetries in the hadroproduction of charm particles directly probe power corrections to the QCD factorization theorems. In this paper, the heavy-quark recombination mechanism, a power correction that explains charm meson asymmetries, is…

High Energy Physics - Phenomenology · Physics 2014-11-17 Eric Braaten , Masaoki Kusunoki , Yu Jia , Thomas Mehen

Heavy quarks, and the hadrons containing them, are excellent probes of the QCD medium formed in high-energy heavy-ion collisions, as they provide essential information on the transport properties of the medium and how quarks…

High Energy Physics - Phenomenology · Physics 2025-05-28 Santosh K. Das , Juan M. Torres-Rincon , Ralf Rapp

Observations by the PHENIX and STAR collaborations suggest that a strongly coupled quark-gluon plasma is produced in heavy-ion collisions at the Relativistic Heavy Ion Collider (RHIC). After a brief introduction to heavy-ion physics,…

Nuclear Experiment · Physics 2011-06-15 A. G. Knospe

In this work, we employ the heavy hadron chiral perturbation theory (HHChPT) to calculate the $\Sigma_c\bar{D}^{(*)}$ potentials to the next-to-leading order. The contact, the one-pion exchange and the two-pion exchange interactions are…

High Energy Physics - Phenomenology · Physics 2019-08-07 Lu Meng , Bo Wang , Guang-Juan Wang , Shi-Lin Zhu

Recent results indicate that charm quarks are intrinsic components of the proton wave function, and that the charm and anticharm distributions for a given value of the Bjorken - $x$ variable can be different. In this paper, we will…

High Energy Physics - Phenomenology · Physics 2024-06-07 Victor P. Goncalves , Rafal Maciula , Antoni Szczurek

Charm particle production in nucleus-nucleus collisions at the CERN SPS energies is considered within a statistical approach. Namely, the Statistical Model of the Early Stage is used to calculate mean multiplicity of charm particles in…

Nuclear Theory · Physics 2017-11-22 R. V. Poberezhnyuk , M. Gazdzicki , M. I. Gorenstein

The status of thermal model descriptions of particle production in heavy ion collisions is presented. We discuss the formulation of statistical models with different implementation of the conservation laws and indicate their applicability…

Nuclear Theory · Physics 2016-11-23 P. Braun-Munzinger , K. Redlich , J. Stachel

The J/psi yield at midrapidity at the top RHIC (relativistic heavy ion collider) energy is calculated within the statistical coalescence model, which assumes charmonium formation at the late stage of the reaction from the charm quarks and…

High Energy Physics - Phenomenology · Physics 2009-11-10 A. P. Kostyuk , M. I. Gorenstein , H. Stoecker , W. Greiner

Recent experimental data from $pp$ collisions have shown a significant increase in heavy baryon production leading to a baryon over meson ratio which is one order of magnitude higher than elementary collisions ($e^+e^-$, $ep$). From a…

High Energy Physics - Phenomenology · Physics 2024-05-30 Vincenzo Minissale , Vincenzo Greco , Salvatore Plumari

Assuming the Statistical Hadronization Model and charm flavour conservation, one can quantify the deviation of charm and anti-charm quarks from chemical equilibrium both in the hadronic phase and in the quark-gluon plasma. By linking the…

High Energy Physics - Phenomenology · Physics 2014-12-24 Philipp B. Bahavar , Jan Uphoff , Carsten Greiner

SHARE with CHARM program (SHAREv3) implements the statistical hadronization model description of particle production in relativistic heavy-ion collisions. Given a set of statistical parameters, SHAREv3 program evaluates yields and therefore…

High Energy Physics - Phenomenology · Physics 2015-06-17 M. Petran , J. Letessier , J. Rafelski , G. Torrieri

In a coalescence plus fragmentation approach we calculate the heavy baryon/meson ratio and the $p_T$ spectra of charmed hadrons $D^{0}$, $D_{s}$ and $\Lambda_{c}^{+}$ in a wide range of transverse momentum from low $p_T$ up to about 10 GeV…

High Energy Physics - Phenomenology · Physics 2018-05-04 Salvatore Plumari , Vincenzo Minissale , Santosh K. Das , Gabriele Coci , Vincenzo Greco

Leading charm production in reaction $\pi^- N \rightarrow DX$ is discussed.Three experiments at Fermilab and CERN have measured a rather large enhancement in production rate of leading $D^-$-mesons over nonleading $D^+$.A good description…

High Energy Physics - Phenomenology · Physics 2009-10-28 O. I. Piskounova

We present an overview of the recent abundant measurements for charm production at RHIC. The significant information of charm cross sections in different collision system at 200 GeV and charmed hadron freeze-out and flow properties…

Nuclear Experiment · Physics 2008-11-26 Yifei Zhang

Momenta of charmonia created in Pb-Pb collisions at the Large Hadron Collider are so large that three or more mesons may be produced when the charmonia collide with light mesons in hadronic matter. We study the meson-charmonium collision in…

High Energy Physics - Phenomenology · Physics 2023-01-23 Yi-Hao Pan , Wen-Hao Shi , Xiao-Ming Xu , H. J. Weber