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

Abstract

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:
; ; ORCiD logo; ; ORCiD logo
Publication Date:
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
OSTI Identifier:
1419577
Alternate Identifier(s):
OSTI ID: 1422969
Report Number(s):
LA-UR-18-20593
Journal ID: ISSN 0370-2693; S0370269318300467; PII: S0370269318300467
Grant/Contract Number:  
2012LANL7033; AC52-06NA25396
Resource Type:
Published Article
Journal Name:
Physics Letters B
Additional Journal Information:
Journal Name: Physics Letters B Journal Volume: 778 Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Atomic and Nuclear Physics

Citation Formats

Aronson, Samuel, Borras, Evan, Odegard, Brunel, Sharma, Rishi, and Vitev, Ivan. Collisional and thermal dissociation of J / ψ and ϒ states at the LHC. Netherlands: N. p., 2018. Web. doi:10.1016/j.physletb.2018.01.038.
Aronson, Samuel, Borras, Evan, Odegard, Brunel, Sharma, Rishi, & Vitev, Ivan. Collisional and thermal dissociation of J / ψ and ϒ states at the LHC. Netherlands. doi:10.1016/j.physletb.2018.01.038.
Aronson, Samuel, Borras, Evan, Odegard, Brunel, Sharma, Rishi, and Vitev, Ivan. Thu . "Collisional and thermal dissociation of J / ψ and ϒ states at the LHC". Netherlands. doi:10.1016/j.physletb.2018.01.038.
@article{osti_1419577,
title = {Collisional and thermal dissociation of J / ψ and ϒ states at the LHC},
author = {Aronson, Samuel and Borras, Evan and Odegard, Brunel and Sharma, Rishi and Vitev, Ivan},
abstractNote = {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.},
doi = {10.1016/j.physletb.2018.01.038},
journal = {Physics Letters B},
number = C,
volume = 778,
place = {Netherlands},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.physletb.2018.01.038

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Cited by: 5 works
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