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Related papers: Charmonium Production at High $p_t$ at RHIC

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This paper presents measurements of the elliptic flow of charged particles as a function of pseudorapidity and centrality from Cu-Cu collisions at 62.4 and 200 GeV using the PHOBOS detector at the Relativistic Heavy Ion Collider (RHIC). The…

Nuclear Experiment · Physics 2019-08-14 B. Alver

Charmonium production at heavy-ion colliders is considered within the comovers interaction model. The formalism is extended by including possible secondary J/psi production through recombination and an estimate of recombination effects is…

High Energy Physics - Phenomenology · Physics 2008-12-18 A. Capella , L. Bravina , E. G. Ferreiro , A. B. Kaidalov , K. Tywoniuk , E. Zabrodin

We investigate the transverse momentum spectra ($p_T$) and elliptic flow ($v_2$) of $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ produced in peripheral Au+Au collisions at $\sqrt{s_{\rm NN}} = 7.7$, 11.5, 19.6, 27, and 39 GeV in the Beam…

Nuclear Theory · Physics 2026-05-28 Anand Rai , Ashutosh Dwibedi , Sabyasachi Ghosh

We have performed a systematic study of $J/\psi$ and $\psi(2S)$ production in $p-p$ collisions at different LHC energies and at different rapidities using the leading order (LO) non-relativistic QCD (NRQCD) model of heavy quarkonium…

High Energy Physics - Phenomenology · Physics 2015-06-23 Biswarup Paul , Mahatsab Mandal , Pradip Roy , Sukalyan Chattapadhyay

Heavy quarkonia production is predicted to be sensitive to the formation of the quark gluon plasma in relativistic heavy ion collisions via competing mechanisms such as color screening and/or quark recombination. During 2004 and 2005 RHIC…

Nuclear Experiment · Physics 2019-08-14 H. Pereira Da Costa

A recently developed statistical coalescence model of the J/psi production is presented. The NA50 data on the J/psi suppression pattern and the transverse mass spectra in Pb+Pb collisions at the SPS are analyzed. The model predictions for…

High Energy Physics - Phenomenology · Physics 2007-05-23 Mark I. Gorenstein

The elliptic flow in heavy ion collisions at RHIC is studied in a multiphase transport model. By converting the strings in the high energy density regions into partons, we find that the final elliptic flow is sensitive to the parton…

Nuclear Theory · Physics 2009-11-07 Zi-wei Lin , C. M. Ko

The measured elliptic flow (v2) of identified particles as a function of pT and centrality at RHIC suggests the created medium in Au+Au collisions achieves early local thermal equilibrium that is followed by hydrodynamic expansion. It is…

Nuclear Experiment · Physics 2009-11-11 Erik Johnson

A consistent picture of the Au+Au and D+Au, s^1/2 = 200 A GeV measurements at RHIC obtained with the PHENIX, STAR, PHOBOS and BRAHMS detectors including both the rapidity and transverse momentum spectra was previously developed with the…

Nuclear Theory · Physics 2008-11-26 D. E. Kahana , S. H. Kahana

We present first measurements of the $\phi$-meson elliptic flow ($v_{2}(p_{T})$) and high statistics $p_{T}$ distributions for different centralities from $\sqrt{s_{NN}}$ = 200 GeV Au+Au collisions at RHIC. In minimum bias collisions the…

Nuclear Experiment · Physics 2009-06-25 B. I. Abelev

It is shown that a QCD based nuclear absorption model, with few parameters fixed to reproduce experimental $J/\psi$ yield in 200 GeV pp/pA and 450 GeV pA collisions can explain the preliminary PHENIX data on the centrality dependence of…

Nuclear Theory · Physics 2009-11-10 A. K. Chaudhuri

The J/psi elliptic flow in high energy nuclear collisions is calculated in a transport model. While the flow is very small at SPS and RHIC energies, it is strongly enhanced at LHC energy due to the dominance of the regeneration mechanism.

Nuclear Theory · Physics 2010-03-04 Yunpeng Liu , Nu Xu , Pengfei Zhuang

Data from J/psi and psi' production in p-A collisions are used to determine the cross section for absorption of pre-resonance charmonium in nuclear matter. The J/psi suppression in O-Cu, O-U and S-U collisions is fully reproduced by the…

High Energy Physics - Phenomenology · Physics 2009-07-09 D. Kharzeev , C. Lourenco , M. Nardi , H. Satz

Recent results on high transverse momentum (pT) hadron production in p+p, d+Au and Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC) are reviewed. Comparison of the nuclear modification factors, $R_{dAu}(pT)$ and $R_{AA}(pT)$,…

Nuclear Experiment · Physics 2009-11-10 J. L. Klay

The production of charmonia in ultrarelativistic heavy-ion collisions is investigated including two sources. These are a primordial contribution coupled with various phases of dissociation, and a statistical coalescence of $c$ and $\bar{c}$…

High Energy Physics - Phenomenology · Physics 2009-11-07 L. Grandchamp , R. Rapp

We study the elliptic flow systematically from SIS to RHIC energies in a realistic dynamical cascade model. We compile our results with the recent data from STAR and PHOBOS experiments on elliptic flow of charged particles in Au + Au…

Nuclear Theory · Physics 2007-05-23 P. K. Sahu , N. Otuka , A. Ohnishi

The ALICE Collaboration studies the production of J/psi meson in pp collisions at the center-of-mass energies of 2.76 and 7 TeV at mid- and forward-rapidity. Inclusive production cross-sections are presented as a function of the collision…

High Energy Physics - Experiment · Physics 2019-08-13 Ionut Arsene

The motion of charmonium in heavy ion collisions is described by a three dimensional transport equation with initial production and continuous regeneration in hot medium. The observation of apparently stronger $J/\psi$ suppression at…

Nuclear Theory · Physics 2014-11-20 Yunpeng Liu , Zhen Qu , Nu Xu , Pengfei Zhuang

We present results on transverse momentum ($p_{\rm T}$) and rapidity ($y$) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive J/$\psi$ and $\psi(2S)$ at forward rapidity…

High Energy Physics - Experiment · Physics 2017-07-07 ALICE Collaboration

Using a two-component model for charmonium production, which includes contributions from both the initial hard nucleon-nucleon scattering and from the regeneration in the quark-gluon plasma, we study the nuclear modification factor $R_{AA}$…

High Energy Physics - Phenomenology · Physics 2011-02-21 Taesoo Song , Che Ming Ko , Su Houng Lee , Jun Xu