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We calculate excitation functions for open charm mesons in $Au+Au$ reactions from AGS to RHIC energies within the HSD transport approach which is based on string, quark, diquark ($q, \bar{q}, qq, \bar{q}\bar{q}$) and hadronic degrees of…

Nuclear Theory · Physics 2009-11-06 W. Cassing , E. L. Bratkovskaya , A. Sibirtsev

Consequences resulting from the D Dbar excess derived indirectly by the NA50 experiment in S+U and Pb+Pb collisions at sqrt(s)=19, 17 GeV, relevant for the identification of the QCD phase transition in these collisions, are discussed. The…

High Energy Physics - Phenomenology · Physics 2009-10-31 Sonja Kabana

The statistical coalescence model for the production of open and hidden charm is considered within the canonical ensemble formulation. The data for the J/\psi multiplicity in Pb+Pb collisions at 158 A GeV are used for the model prediction…

High Energy Physics - Phenomenology · Physics 2009-10-31 M. I. Gorenstein , A. P. Kostyuk , H. Stoecker , W. Greiner

We study charm production in Pb+Pb collisions at $\sqrt{s_{\rm NN}}=$2.76 TeV in the Parton-Hadron-String-Dynamics transport approach and the charm dynamics in the partonic and hadronic medium. The charm quarks are produced through initial…

Nuclear Theory · Physics 2016-03-23 Taesoo Song , Hamza Berrehrah , Daniel Cabrera , Wolfgang Cassing , Elena Bratkovskaya

Production of open and hidden charm hadrons in heavy ion collisions is considered within the statistical coalescence model. Charmed quarks and antiquarks are assumed to be created at the initial stage of the reaction and their number is…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. P. Kostyuk

We present the production systematics of open charm hadron yields in high-energy collisions and their description based on the Statistical Hadronization Model of charm (SHMc). The rapidity density of $D^0, D^+, D^{*+}, D_s^+$ mesons and…

High Energy Physics - Phenomenology · Physics 2025-07-28 Peter Braun-Munzinger , Krzysztof Redlich , Natasha Sharma , Johanna Stachel

We present the first predictions for sub-threshold open charm and charmonium production in nuclear collisions. The production mechanism is driven by multi-step scatterings of nucleons and their resonance states, accumulating sufficient…

Nuclear Theory · Physics 2017-01-26 J. Steinheimer , A. Botvina , M. Bleicher

Effects of strong longitudinal color electric fields (SCF) on the open charm production in nucleus-nucleus (A + A) collisions at 200A GeV are investigated within the framework of the HIJING-BBbar v2.0 model. A three fold increase of the…

High Energy Physics - Phenomenology · Physics 2009-10-09 V. Topor Pop , J. Barrette , M. Gyulassy

We discuss the open charm production in peripheral reactions $\bar pp\to \bar Y_cY_c$ and $\bar pp\to M_c\bar M_c$, where $Y_c$ and $M_c$ stand for $\Lambda_c^+,\Sigma_c^+$ and $D,D^*$, respectively, at $\sqrt{s}\lesssim 15$ GeV, which…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. I. Titov , B. Kampfer

We present a theoretical framework to study open charm production in relativistic heavy-ion collisions. The coupling strength between the charm quarks and the QGP constituents, quantified by the spatial diffusion coefficient $2\pi TD_{s}$,…

High Energy Physics - Phenomenology · Physics 2018-08-01 Shuang Li , Chaowen Wang , Xianbao Yuan , Shengqin Feng

We investigate the charm hadron production in relativistic heavy-ion collisions with the quark combination model. The $p_{T}$ dependencies of the charm baryon to meson ratios such as…

Nuclear Theory · Physics 2009-01-16 Tao Yao , Wei Zhou , Qu-Bing Xie

We study open charm hadrons production in pp and Au+Au collisions at $\sqrt{s_{\mathrm{NN}}} = 200$~GeV using an improved a multi-phase transport (AMPT) model. Specifically, we show the transverse-momentum spectra and nuclear modification…

High Energy Physics - Phenomenology · Physics 2026-01-21 Bijun Fan , Chao Zhang , Liang Zheng , Shusu Shi

Cross sections for the charm-production reactions $\bar p p \to \bar \Lambda_c^- \Sigma_c^+$, $\bar \Sigma_c\Sigma_c$, $\bar \Xi_c\Xi_c$, and $\bar \Xi_c'\Xi_c'$ are presented, for energies near their respective thresholds. The results are…

Nuclear Theory · Physics 2017-01-25 J. Haidenbauer , G. Krein

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 associative charm particles production in nucleon-nucleon collisions $N+N\to \Lambda_c(\Sigma_c)+\bar{D}+N$, is described in a general way and the spin and isospin structure of the corresponding matrix elements are derived. Using an…

Nuclear Theory · Physics 2007-05-23 Michail P. Rekalo Egle Tomasi-Gustafsson

We calculate open charm and charmonium production in $Au+Au$ reactions at $\sqrt{s}$ = 200 GeV within the hadron-string dynamics (HSD) transport approach employing open charm cross sections from $pN$ and $\pi N$ reactions that are fitted to…

Nuclear Theory · Physics 2009-11-10 E. L. Bratkovskaya , W. Cassing , H. Stoecker

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

High Energy Physics - Phenomenology · Physics 2009-11-07 A. P. Kostyuk

We discuss production of charmed mesons and J/Psi in p(d)A collisions at high energies. We argue that when the saturation scale Qs characterizing the parton density in a nucleus exceeds the quark mass m, the naive perturbation theory breaks…

High Energy Physics - Phenomenology · Physics 2009-01-07 Kirill Tuchin

Effects of strong longitudinal colour electric fields (SCF), shadowing, and quenching on the open prompt charm mesons (D$^0$, D$^+$, D$^{*+}$, D${_s}{^+}$) production in central Pb + Pb collisions at $\sqrt{s_{\rm NN}}$ = 2.76 TeV are…

High Energy Physics - Phenomenology · Physics 2015-06-16 V. Topor Pop , M. Gyulassy , J. Barrette , C. Gale , M. Petrovici

The production of charmed and beauty hadrons in proton-proton and proton-antiproton collisions at high energies is analyzed within the modified quark-gluon string model (QGSM) including the internal motion of quarks in colliding hadrons. It…

High Energy Physics - Phenomenology · Physics 2010-04-22 Gennady I. Lykasov , Vladimir V. Lyubushkin , Vadim A. Bednyakov
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