scholarly journals Extraction of the heavy-quark potential from bottomonium observables in heavy-ion collisions

2019 ◽  
Vol 796 ◽  
pp. 20-25 ◽  
Author(s):  
Xiaojian Du ◽  
Shuai Y.F. Liu ◽  
Ralf Rapp
Keyword(s):  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Ion Collisions ◽  
Quark Potential ◽  
Heavy Quark Potential

scholarly journals Quarkonium Production in the QGP

Universe ◽  
2019 ◽  
Vol 5 (5) ◽  
pp. 117
Author(s):  
Alexander Rothkopf
Keyword(s):  
Heavy Ion Collisions ◽  
Open Quantum Systems ◽  
Heavy Ion ◽  
Heavy Quarkonium ◽  
Recent Theory ◽  
Ion Collisions ◽  
Quark Potential ◽  
The One ◽  
Heavy Quark Potential ◽  
Systems Framework

We report on recent theory progress in understanding the production of heavy quarkonium in heavy-ion collisions based on the in-medium heavy-quark potential extracted from lattice QCD simulations. On the one hand, the proper in-medium potential allows us to study the spectral properties of heavy quarkonium in thermal equilibrium, from which we estimate the ψ ′ to J / ψ ratio in heavy-ion collisions. On the other hand, the potential provides a central ingredient in the description of the real-time evolution of heavy-quarkonium formulated in the open-quantum-systems framework.

scholarly journals Highlights from PHENIX at RHIC

2018 ◽  
Vol 171 ◽  
pp. 01003
Author(s):  
Rachid Nouicer
Keyword(s):  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Meson Production ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Dense Medium ◽  
Heavy Flavor ◽  
Theoretical Understanding ◽  
Rapidity Region ◽  
Ion Collisions

Hadrons conveying strange quarks or heavy quarks are essential probes of the hot and dense medium created in relativistic heavy-ion collisions. With hidden strangeness, ϕ meson production and its transport in the nuclear medium have attracted high interest since its discovery. Heavy quark-antiquark pairs, like charmonium and bottomonium mesons, are mainly produced in initial hard scattering processes of partons. While some of the produced pairs form bound quarkonia, the vast majority hadronize into particles carrying open heavy flavor. In this context, the PHENIX collaboration carries out a comprehensive physics program which studies the ϕ meson production, and heavy flavor production in relativistic heavy-ion collisions at RHIC. In recent years, the PHENIX experiment upgraded the detector in installing silicon vertex tracker (VTX) at mid-rapidity region and forward silicon vertex tracker (FVTX) at the forward rapidity region. With these new upgrades, the experiment has collected large data samples, and enhanced the capability of heavy flavor measurements via precision tracking. This paper summarizes the latest PHENIX results concerning ϕ meson, open and closed charm and beauty heavy quark production in relativistic heavy-ion collisions. These results are presented as a function of rapidity, energy and system size, and their interpretation with respect to the current theoretical understanding.

scholarly journals The QCD pomeron in ultraperipheral heavy ion collisions: II. Heavy quark production

2003 ◽  
Vol 29 (1) ◽  
pp. 37-44 ◽  
Author(s):  
V.P. Gonçalves ◽  
M.V.T. Machado
Keyword(s):  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Heavy Quark Production ◽  
Ion Collisions ◽  
Quark Production ◽  
Qcd Pomeron

scholarly journals Conformal holography of bulk elliptic flow and heavy-quark quenching in relativistic heavy ion collisions

2010 ◽  
Vol 82 (5) ◽  
Author(s):  
Jorge Noronha ◽  
Miklos Gyulassy ◽  
Giorgio Torrieri
Keyword(s):  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Elliptic Flow ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Ion Collisions

scholarly journals Heavy-quark production from relativistic heavy-ion collisions

2010 ◽  
Vol 37 (11) ◽  
pp. 115006 ◽  
Author(s):  
Mohammed Younus ◽  
Dinesh K Srivastava
Keyword(s):  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Relativistic Heavy Ion Collisions ◽  
Heavy Quark Production ◽  
Ion Collisions ◽  
Quark Production

scholarly journals Equation of States and Charmonium Suppression in Heavy-Ion Collisions

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Indrani Nilima ◽  
Vineet Kumar Agotiya
Keyword(s):  
Equation Of State ◽  
Heavy Ion ◽  
Particle Model ◽  
Quasi Particle ◽  
Ion Collisions ◽  
Debye Mass ◽  
Charmonium Suppression ◽  
Quark Potential ◽  
Heavy Quark Potential ◽  
Charmonium States

The present article is the follow-up of our work Bottomonium suppression in quasi-particle model, where we have extended the study for charmonium states using quasi-particle model in terms of quasi-gluons and quasi quarks/antiquarks as an equation of state. By employing medium modification to a heavy quark potential thermodynamic observables, viz., pressure, energy density, speed of sound, etc. have been calculated which nicely fit with the lattice equation of state for gluon, massless, and as well massive flavored plasma. For obtaining the thermodynamic observables we employed the debye mass in the quasi particle picture. We extended the quasi-particle model to calculate charmonium suppression in an expanding, dissipative strongly interacting QGP medium (SIQGP). We obtained the suppression pattern for charmonium states with respect to the number of participants at mid-rapidity and compared it with the experimental data (CMS JHEP) and (CMS PAS) at LHC energy (Pb+Pb collisions, sNN = 2.76 TeV).

scholarly journals Energy loss effects on heavy quark production in heavy-ion collisions at √s = 5.5 A TeV

1999 ◽  
Vol 544 (1-2) ◽  
pp. 339-354 ◽  
Author(s):  
Ziwei Lin ◽  
Ramona Vogt
Keyword(s):  
Energy Loss ◽  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Heavy Quark Production ◽  
Ion Collisions ◽  
Quark Production

PARTON SATURATION APPROACH IN HEAVY QUARK PRODUCTION AT HIGH ENERGIES

2004 ◽  
Vol 19 (34) ◽  
pp. 2525-2539 ◽  
Author(s):  
V. P. GONÇALVES ◽  
M. V. T. MACHADO
Keyword(s):  
Quantum Chromodynamics ◽  
Heavy Quark ◽  
Heavy Ion Collisions ◽  
Heavy Ion ◽  
Parton Density ◽  
Heavy Quark Production ◽  
High Energies ◽  
Ion Collisions ◽  
Quark Production ◽  
Density Regime

The high parton density regime of the quantum chromodynamics (QCD), where the physics of parton saturation is expected to be dominant, is briefly discussed. Some phenomenological aspects of saturation are described, mainly focusing on possible signatures of the nonlinear QCD dynamics in the heavy quark production in electron–proton/nucleus collisions. Implications of these effects in the heavy quark production in ultraperipheral heavy-ion collisions are also presented.

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