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We study rapidly spinning compact stars with equations of state featuring a first order phase transition between strongly coupled nuclear matter and deconfined quark matter by employing the gauge/gravity duality. We consider a family of…

High Energy Astrophysical Phenomena · Physics 2021-02-10 Tuna Demircik , Christian Ecker , Matti Järvinen

PHENIX has measured $J/\psi$ production at backward, central and forward rapidities both in p+p and d+Au collisions at $\sqrt{s_{NN}}=200$ GeV during the third run of the RHIC collider. From the p+p collisions, we measure the total J/$\psi$…

Nuclear Experiment · Physics 2019-08-14 Raphaël Granier de Cassagnac

We present measurements of charged hadron p_T spectra from Au+Au collisions at sqrt(snn)=62.4 GeV for pseudorapidities eta=0, eta=1 and eta=3.2. Around midrapidity (eta=0, eta=1) we find nuclear modification factors at levels suggesting a…

The ALICE Collaboration has studied the inclusive J/$\psi$ and $\psi(\mathrm{2S})$ production in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV, at the CERN LHC. The J/$\psi$ measurement is performed in the $\mu^{+}\mu^{-}$ and in the…

High Energy Physics - Experiment · Physics 2015-11-23 Marco Leoncino

In the QGP motivated threshold model, in addition to the normal nuclear absorption, $J/\psi$'s are subjected to an additional "anomalous" suppression. We have analysed the recently published PHENIX data on the participant number dependence…

Nuclear Theory · Physics 2008-11-26 A. K. Chaudhuri

We evaluate the transverse momentum spectrum of J/Psi (up to semi-hard momenta) in pA and AA collisions taking into account only the initial state effects, but resumming them to all orders in \alpha_s^2 A^{1/3}. In our previous papers we…

High Energy Physics - Phenomenology · Physics 2014-02-19 D. E. Kharzeev , E. M. Levin , K. Tuchin

We have studied the behaviour of the nuclear modification factor as a function of centrality, chemical baryon potential and thermal freeze out temperature using the data coming from the Fast Hadron Freezeout Generator. Considering two ways…

Nuclear Experiment · Physics 2009-04-14 M. Ajaz , M. K. Suleymanov , E. U. Khan , M. Q. Haseeb , K. H. Khan , Z. Wazir

Statistical QCD predicts that strongly interacting matter will become deconfined at high temperatures and/or densities. The aim of high energy nuclear collisions is to study the onset of deconfinement and the properties of deconfined media…

High Energy Physics - Phenomenology · Physics 2007-05-23 Helmut Satz

The J/psi is considered to be among the most important probes for the deconfined quark gluon plasma (QGP) created by relativistic heavy ion collisions. While the J/psi is thought to dissociate in the QGP by Debye color screening, there are…

Nuclear Experiment · Physics 2019-08-13 Susumu X. Oda

Recent NICER observation data on PSR J0030+0451 has recently added a unique mass-radius constraint on the properties of the superdense nuclear matter existing in the interior of compact stars. Such a macroscopic data restrict further the…

High Energy Astrophysical Phenomena · Physics 2022-02-14 Péter Pósfay , Gergely Gábor Barnaföldi , Antal Jakovác

Charged particle transverse momentum (pT) spectra have been measured by CMS for pp and PbPb collisions at the same sqrt(sNN)=2.76 TeV collision energy per nucleon pairs. Calorimeter-based jet triggers are employed to enhance the statistical…

Nuclear Experiment · Physics 2019-08-21 Krisztian Krajczar

We present here a robust analytical model based on nuclear reaction theory for non-resonant fusion cross sections near Coulomb barrier. The astrophysical $S$-factors involving stable and neutron rich isotopes of C, O, Ne, Mg and Si for…

Nuclear Theory · Physics 2019-06-05 Vinay Singh , Joydev Lahiri , D. N. Basu

In this paper, results on the J/$\psi$ cross section and polarization measured via the dielectron decay channel at mid-rapidity in $p+p$ collisions at $\sqrt{s}$ = 200 and 500 GeV in the STAR experiment are discussed. The first measurement…

High Energy Physics - Experiment · Physics 2015-06-11 Barbara Trzeciak

We report the measurements of the prompt and non-prompt J/{\psi} and {\psi}(2S) nuclear modification factors (RAA) using pp and PbPb data and the RpPb using pPb data collected by CMS at the LHC. All measurements were performed via the…

High Energy Physics - Experiment · Physics 2021-02-16 Abdulla Abdulsalam

In these proceedings, we present recent results of $\Upsilon$ measurements in heavy-ion collisions from the STAR experiment at RHIC. Nuclear modification factors ($R_{AA}$) for $\Upsilon(1S)$ and $\Upsilon(1S+2S+3S)$ in U+U collisions at…

High Energy Physics - Experiment · Physics 2017-02-21 Zaochen Ye

The study of nuclear modification factor is crucial in advancing our knowledge of the hot and dense nuclear matter created during high energy heavy-ion collision. In this direction, we have developed a theoretical model for the nuclear…

High Energy Physics - Phenomenology · Physics 2026-03-24 Rohit Gupta

The nearest two years on experiment STAR the upgrade is planned, which will make it possible to identify particles up to momentum $\sim$ 3 GeV/c. This will open possibility to carry out new and more detailed researches of properties of a…

Nuclear Experiment · Physics 2007-05-23 J. Karachuk , S. S. Shimanskiy

Description of parton interaction with the hot and dense nuclear matter created in heavy-ion collisions at high energies is a complex task, which requires a detailed knowledge of jet production in p+p and d+Au collisions. Measurements in…

Nuclear Experiment · Physics 2015-05-28 Jana Bielcikova

We investigate J/psi transverse momentum distribution in a transport approach. While the nuclear modification factor R_{AA}(N_p) at RHIC is almost the same as at SPS, the averaged transverse momentum square <p_t^2> and R_{AA}(p_t) are very…

Nuclear Theory · Physics 2011-04-13 Kai Zhou , Nu Xu , Pengfei Zhuang

Data taken over the last several years have demonstrated that RHIC has created a hot, dense medium with partonic degrees of freedom. Identified particle spectra at high transverse momentum ($p_T$) and heavy flavor are thought to be well…

Nuclear Experiment · Physics 2014-11-20 Lijuan Ruan
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