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Title: Collisional and thermal dissociation of J/ψ and Y states at the LHC

We present new results for the suppression of high transverse momentum charmonium [J/ψ,ψ(2S)] and bottomonium [Υ(1S), Υ(2S), Υ(3S)] states in Pb+Pb collisions at the Large Hadron Collider. Our theoretical formalism combines the collisional dissociation of quarkonia, as they propagate in the quark–gluon plasma, with the thermal wavefunction effects due to the screening of the $$Q\overline{Q}$$ attractive potential in the medium. We find that a good description of the relative suppression of the ground and higher excited quarkonium states, transverse momentum and centrality distributions is achieved, when comparison to measurements at a center-of-mass energy of 2.76 TeV is performed. Theoretical predictions for the highest Pb+Pb center-of-mass energy of 5.02 TeV at the LHC, where new experimental results are being finalized, are also presented.
Authors:
 [1] ;  [1] ; ORCiD logo [1] ;  [2] ; ORCiD logo [3]
  1. Univ. of California, Santa Barbara, CA (United States). College of Creative Studies
  2. Tata Institute of Fundamental Research, Mumbai (India)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-18-20593
Journal ID: ISSN 0370-2693; TRN: US1801679
Grant/Contract Number:
AC52-06NA25396; 2012LANL7033
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 778; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC); USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Atomic and Nuclear Physics
OSTI Identifier:
1419577
Alternate Identifier(s):
OSTI ID: 1422969