Medium Modifications and Production of Charmonia at LHC - INSPIRE

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Medium Modifications and Production of Charmonia at LHC

Xingbo Zhao
(
- Iowa State U.
)
,
Ralf Rapp
(
- Texas A-M, Cyclotron Inst. and
- Texas A-M
)

Feb, 2011

7 pages

Published in:

Nucl.Phys.A 859 (2011) 114-125

e-Print:

1102.2194 [hep-ph]

DOI:

10.1016/j.nuclphysa.2011.05.001

View in:

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Abstract: (Elsevier)

A previously constructed transport approach to calculate the evolution of quarkonium yields and spectra in heavy-ion collisions is applied to Pb Pb ( s = 2.76 A TeV ) collisions at the Large Hadron Collider (LHC). In this approach spectral properties of charmonia are constrained by Euclidean correlators from thermal lattice QCD and subsequently implemented into a Boltzmann equation accounting for both suppression and regeneration reactions. Based on a fair description of SPS and RHIC data, we provide predictions for the centrality dependence of J / ψ yields at LHC. The main uncertainty is associated with the input charm cross section, in particular its hitherto unknown reduction due to shadowing in nuclear collisions. Incomplete charm-quark thermalization and non-equilibrium in charmonium chemistry entail a marked reduction of the regeneration yield compared to the statistical equilibrium limit.

Note:

7 pages, 9 eps figures

14.40.Pq
12.38.Mh
25.75.-q
Quark-gluon plasma
Charmonia
Ultrarelativistic heavy-ion collisions
Quark–gluon plasma
quark gluon: plasma
charmonium: production
charmonium: mass spectrum

References(36)

Figures(0)

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