Quarkonia suppression in PbPb collisions at sNN=2.76 TeV

Kumar, Vineet; Shukla, Prashant; Vogt, Ramona

doi:10.1103/PhysRevC.92.024908

Title: Quarkonia suppression in PbPb collisions at $\sqrt{s_{N N}} = 2.76$ TeV

Abstract

We estimate the modification of quarkonia yields due to different processes in the medium produced in PbPb collisions at LHC energy. The quarkonia and heavy flavor cross sections calculated up to next-to-leading order (NLO) are used in the study. Shadowing corrections are obtained with the NLO EPS09 parametrization. A kinetic model is employed which incorporates quarkonia suppression inside a QGP, suppression due to hadronic comovers, and regeneration from charm pairs. The quarkonia dissociation cross section due to gluon collisions has been considered and the regeneration rate has been obtained using the principle of detailed balance. The modification in quarkonia yields due to collisions with hadronic comovers has been estimated assuming that the comovers are pions. The manifestations of these effects on the nuclear modification factors for both J/ψ and Υ in different kinematic regions has been demonstrated for PbPb collisions at √^sNN = 2.76 TeV in comparison with the measurements. Both the suppression and regeneration due to a deconfined medium strongly affect the low and intermediate pT range. As a result, the large observed suppression of J/ψ at p_T > 10GeV/c exceeds the estimates of suppression by gluon dissociation.

Authors:

Kumar, Vineet ^[1]; Shukla, Prashant ^[1]; Vogt, Ramona ^[2]

Bhabha Atomic Research Center, Mumbai (India); Homi Bhabha National Institute, Mumbai (India)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Davis, CA (United States)

Publication Date:: Fri Aug 14 00:00:00 EDT 2015

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1399757

Alternate Identifier(s):: OSTI ID: 1210113

Report Number(s):: LLNL-JRNL-737145
Journal ID: ISSN 0556-2813; PRVCAN; TRN: US1702852

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review C, Nuclear Physics

Additional Journal Information:: Journal Volume: 92; Journal Issue: 2; Journal ID: ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; quark-gluon plasma; quarkonia; suppression; regeneration

Citation Formats


                    Kumar, Vineet, Shukla, Prashant, and Vogt, Ramona. Quarkonia suppression in PbPb collisions at sNN=2.76 TeV.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevC.92.024908.

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                    Kumar, Vineet, Shukla, Prashant, & Vogt, Ramona. Quarkonia suppression in PbPb collisions at sNN=2.76 TeV.  United States.  https://doi.org/10.1103/PhysRevC.92.024908

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                    Kumar, Vineet, Shukla, Prashant, and Vogt, Ramona. Fri .  
"Quarkonia suppression in PbPb collisions at sNN=2.76 TeV".  United States.  https://doi.org/10.1103/PhysRevC.92.024908.  https://www.osti.gov/servlets/purl/1399757.

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@article{osti_1399757,

  title        = {Quarkonia suppression in PbPb collisions at sNN=2.76 TeV},

  author       = {Kumar, Vineet and Shukla, Prashant and Vogt, Ramona},

  abstractNote = {We estimate the modification of quarkonia yields due to different processes in the medium produced in PbPb collisions at LHC energy. The quarkonia and heavy flavor cross sections calculated up to next-to-leading order (NLO) are used in the study. Shadowing corrections are obtained with the NLO EPS09 parametrization. A kinetic model is employed which incorporates quarkonia suppression inside a QGP, suppression due to hadronic comovers, and regeneration from charm pairs. The quarkonia dissociation cross section due to gluon collisions has been considered and the regeneration rate has been obtained using the principle of detailed balance. The modification in quarkonia yields due to collisions with hadronic comovers has been estimated assuming that the comovers are pions. The manifestations of these effects on the nuclear modification factors for both J/ψ and Υ in different kinematic regions has been demonstrated for PbPb collisions at √sNN = 2.76 TeV in comparison with the measurements. Both the suppression and regeneration due to a deconfined medium strongly affect the low and intermediate pT range. As a result, the large observed suppression of J/ψ at pT > 10GeV/c exceeds the estimates of suppression by gluon dissociation.},

  doi          = {10.1103/PhysRevC.92.024908},

  journal      = {Physical Review C, Nuclear Physics},

  number       = 2,

  volume       = 92,

  place        = {United States},

  year         = {Fri Aug 14 00:00:00 EDT 2015},

  month        = {Fri Aug 14 00:00:00 EDT 2015}

}

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Works referencing / citing this record:

Suppression of quarkonia in PbPb collisions at $\sqrt{{s}_{{NN}}}$ = 5.02 TeV
journal, December 2019

Kumar, Vineet; Shukla, Prashant; Bhattacharyya, Abhijit
Journal of Physics G: Nuclear and Particle Physics, Vol. 47, Issue 1
DOI: 10.1088/1361-6471/ab51cf

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Title: Quarkonia suppression in PbPb collisions at s N N = 2.76 TeV

Abstract

Citation Formats

Enhanced J / ψ production in deconfined quark matter journal, April 2001

Pionic parton distributions journal, December 1992

Heavy-quarkonium hadron cross section in QCD at leading twist journal, November 2001

First Results from Pb+Pb Collisions at the LHC journal, November 2012

EPS09 — A new generation of NLO and LO nuclear parton distribution functions journal, April 2009

QCD equation of state and hadron resonance gas journal, June 2010

Energy dependence of J/ψ absorption in proton-nucleus collisions journal, February 2009

Observation of Sequential Υ Suppression in PbPb Collisions journal, November 2012

SUPPRESSION OF BOTTOMONIA STATES IN FINITE SIZE QUARK–GLUON PLASMA IN PbPb COLLISIONS AT LARGE HADRON COLLIDER journal, August 2013

The statistical model in Pb–Pb collisions at the LHC journal, May 2013

New parton distributions for collider physics journal, October 2010

Short-distance analysis for heavy-quark systems journal, September 1979

Indications of Suppression of Excited Υ States in Pb-Pb Collisions at s NN = 2.76 TeV journal, July 2011

Overview of quarkonia and heavy flavour measurements by CMS journal, February 2015

Cold nuclear matter effects on J / ψ and ϒ production at energies available at the CERN Large Hadron Collider (LHC) journal, April 2010

J /ψ suppression in an equilibrating parton plasma journal, June 1996

J /ψ production and correlation in p + p and Au+Au collisions at STAR journal, November 2011

Two-stage equilibration in high energy heavy ion collisions journal, June 1992

Heavy quarkonium: progress, puzzles, and opportunities journal, February 2011

Observation and studies of jet quenching in PbPb collisions at s N N = 2.76 TeV journal, August 2011

Statistical hadronization of charm in heavy-ion collisions at SPS, RHIC and LHC journal, October 2003

J/ψ suppression by quark-gluon plasma formation journal, October 1986

Heavy ion physics at the Large Hadron Collider: what is new ? What is next? journal, December 2013

Suppression of non-prompt J/ψ, prompt J/ψ, and $ \Upsilon $ (1S) in PbPb collisions at $ \sqrt {{{s_{\text{NN}}}}} = 2.76 $ TeV journal, May 2012

J / ψ suppression at forward rapidity in Au + Au collisions at s N N = 200 GeV journal, November 2011

Momentum spectra of charmonium produced in a quark-gluon plasma journal, January 2006

Bottomonia in the quark-gluon plasma and their production at RHIC and LHC journal, May 2012

Color screening and deconfinement for bound states of heavy quarks journal, December 1988

Thermal Υ ( 1 s ) and χ b 1 Suppression at ( s N N ) = 2.76 TeV Pb-Pb Collisions at the LHC journal, September 2011

Components of the dilepton continuum in Pb+Pb collisions at s N N = 2.76 TeV journal, November 2012

Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at $ \sqrt {{{s_{\text{NN}}}}} = 2.76 $ TeV journal, August 2011

Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at s NN = 2.76 TeV journal, January 2011

interactions with hot hadronic matter journal, June 1988

Narrowing the uncertainty on the total charm cross section and its effect on the J / ψ cross section journal, January 2013

QCD Predictions for Charm and Bottom Quark Production at RHIC journal, September 2005

Suppression of ϒ ( 1 S ) at forward rapidity in Pb–Pb collisions at s NN = 2.76 TeV journal, November 2014

Medium modifications and production of charmonia at LHC journal, June 2011

Overview of results on heavy flavour and quarkonia from the CMS collaboration journal, May 2013

Suppression of quarkonia in PbPb collisions at $\sqrt{{s}_{{NN}}}$ = 5.02 TeV journal, December 2019

Title: Quarkonia suppression in PbPb collisions at $\sqrt{s_{N N}} = 2.76$ TeV

Enhanced $J / ψ$ production in deconfined quark matter
journal, April 2001

Pionic parton distributions
journal, December 1992

Heavy-quarkonium hadron cross section in $QCD$ at leading twist
journal, November 2001

First Results from Pb+Pb Collisions at the LHC
journal, November 2012

EPS09 — A new generation of NLO and LO nuclear parton distribution functions
journal, April 2009

QCD equation of state and hadron resonance gas
journal, June 2010

Energy dependence of J/ψ absorption in proton-nucleus collisions
journal, February 2009

Observation of Sequential $Υ$ Suppression in PbPb Collisions
journal, November 2012

SUPPRESSION OF BOTTOMONIA STATES IN FINITE SIZE QUARK–GLUON PLASMA IN PbPb COLLISIONS AT LARGE HADRON COLLIDER
journal, August 2013

The statistical model in Pb–Pb collisions at the LHC
journal, May 2013

New parton distributions for collider physics
journal, October 2010

Short-distance analysis for heavy-quark systems
journal, September 1979

Indications of Suppression of Excited $Υ$ States in Pb-Pb Collisions at $\sqrt{s_{NN}} = 2.76 TeV$
journal, July 2011

Overview of quarkonia and heavy flavour measurements by CMS
journal, February 2015

Cold nuclear matter effects on $J / ψ$ and $ϒ$ production at energies available at the CERN Large Hadron Collider (LHC)
journal, April 2010

J /ψ suppression in an equilibrating parton plasma
journal, June 1996

J /ψ production and correlation in p + p and Au+Au collisions at STAR
journal, November 2011

Two-stage equilibration in high energy heavy ion collisions
journal, June 1992

Heavy quarkonium: progress, puzzles, and opportunities
journal, February 2011

Observation and studies of jet quenching in PbPb collisions at $\sqrt{s_{N N}} = 2.76$ TeV
journal, August 2011

Statistical hadronization of charm in heavy-ion collisions at SPS, RHIC and LHC
journal, October 2003

J/ψ suppression by quark-gluon plasma formation
journal, October 1986

Heavy ion physics at the Large Hadron Collider: what is new ? What is next?
journal, December 2013

Suppression of non-prompt J/ψ, prompt J/ψ, and $ \Upsilon $ (1S) in PbPb collisions at $ \sqrt {{{s_{\text{NN}}}}} = 2.76 $ TeV
journal, May 2012

$J / ψ$ suppression at forward rapidity in Au $+$ Au collisions at $\sqrt{s_{N N}} = 200$ GeV
journal, November 2011

Momentum spectra of charmonium produced in a quark-gluon plasma
journal, January 2006

Bottomonia in the quark-gluon plasma and their production at RHIC and LHC
journal, May 2012

Color screening and deconfinement for bound states of heavy quarks
journal, December 1988

Thermal $Υ (1 s)$ and $χ_{b 1}$ Suppression at $\sqrt{(} s_{N N}) = 2.76 TeV$ Pb-Pb Collisions at the LHC
journal, September 2011

Components of the dilepton continuum in Pb+Pb collisions at $\sqrt{s_{N N}} = 2.76$ TeV
journal, November 2012

Dependence on pseudorapidity and on centrality of charged hadron production in PbPb collisions at $ \sqrt {{{s_{\text{NN}}}}} = 2.76 $ TeV
journal, August 2011

Centrality Dependence of the Charged-Particle Multiplicity Density at Midrapidity in Pb-Pb Collisions at $\sqrt{s_{NN}} = 2.76 TeV$
journal, January 2011

interactions with hot hadronic matter
journal, June 1988

Narrowing the uncertainty on the total charm cross section and its effect on the $J / ψ$ cross section
journal, January 2013

QCD Predictions for Charm and Bottom Quark Production at RHIC
journal, September 2005

Suppression of $ϒ (1 S)$ at forward rapidity in Pb–Pb collisions at $\sqrt{s_{NN}} = 2.76 TeV$
journal, November 2014

Medium modifications and production of charmonia at LHC
journal, June 2011

Overview of results on heavy flavour and quarkonia from the CMS collaboration
journal, May 2013

Suppression of quarkonia in PbPb collisions at $\sqrt{{s}_{{NN}}}$ = 5.02 TeV
journal, December 2019