Temperature dependent formation-time approach for ${\rm Y}$ suppression at energies available at the CERN Large Hadraon Collider

Abstract

We present here a comprehensive model to describe the bottomonium suppression data obtained from the CERN Large Hadron Collider (LHC) at center-of-mass energy of $\sqrt{s_{NN}}=2.76$ TeV. We employ a quasiparticle model (QPM) equation of state for the quark-gluon plasma (QGP) expanding under Bjorken's scaling law. The current model includes the modification of the formation time based on the temperature of the QGP, color screening during bottomonium production, gluon induced dissociation and collisional damping due to the imaginary part of the potential between the $b\bar{b}$ pair. We propose a method for determining the temperature-dependent formation time of bottomonia using the solution of the time-independent Schrödinger equation and compare it with another approach based on time-dependent Schrödinger wave equation simulation. We find that these two independent methods based on different axioms give similar results for the formation time. Cold nuclear matter effects and feed-down from higher resonance states of ${\rm Y}$ have also been included in the present work. The suppression of the bottomonium states at mid rapidity is determined as a function of centrality. The results compare closely with the recent centrality-dependent suppression data at the energies available at the CERN LHC in the mid rapidity region.

arXiv comment14 pages, 14 figures. Figs. 10, 11 and 13 include shading in published version, but not in arxiv version due to file size limitations. Technical content is exactly the same. arXiv admin note: substantial text overlap with arXiv:1402.1560

References in corpus (36)

• New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
• EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• A new measurement of J/psi suppression in Pb-Pb collisions at 158 GeV per nucleon
• Nuclear parton distributions at next to leading order
• Observation of sequential Upsilon suppression in PbPb collisions
• Suppression of non-prompt J/psi, prompt J/psi, and Y(1S) in PbPb collisions at sqrt(sNN) = 2.76 TeV
• J/$\psi$ suppression at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Scale evolution of nuclear parton distributions
• J/Psi Suppression in Pb-Pb Collisions: A Hint of Quark-Gluon Plasma Production?
• Non-Abelian energy loss in cold nuclear matter
• Cold Nuclear Matter Effects on J/psi and Upsilon Production at the LHC
• An improved global analysis of nuclear parton distribution functions including RHIC data
• High transverse momentum quarkonium production and dissociation in heavy ion collisions
• Non-saturation of the J/psi suppression at large transverse energy in the comovers approach
• Bottomonium Production at RHIC and LHC
• Transverse energy fluctuations and the pattern of J/Psi suppression in Pb-Pb collisions
• Nuclear shadowing in neutrino-nucleus deeply inelastic scattering
• Open charm tomography of cold nuclear matter
• Upsilon suppression in PbPb collisions at the LHC
• Determining the existence and nature of the quark-gluon plasma by Upsilon suppression at the LHC
• Spatial Variation of Nuclear Structure Functions and Heavy Quark Production
• $J/\psi$ suppression in Pb+Pb collisions, a conventional description
• Rapidity Dependence of $J/\psi$ Production at RHIC and LHC
• The Soft Gluon Emission Process in the Color-Octet Model for Heavy Quarkonium Production
• Colour screening scenario for quarkonia suppression in a quasiparticle model compared with data obtained from experiments at the CERN SPS, BNL RHIC, and CERN LHC
• $J/\psi$ suppression in Au+Au collisions at RHIC : colour screening scenario in the bag model at variable participant numbers
• Novel heavy flavor suppression mechanisms in the QGP
• Transverse energy distributions and $J/\psi$ production in Pb+Pb collisions
• Nuclear absorption and $J/\psi$ suppression in Pb+Pb collisions
• Bottomonium suppression at $\sqrt{s_{NN}}=2.76$ TeV using model based on color screening and gluonic dissociation with collisional damping
• Transverse energy dependence of J/Psi suppression in Au+Au collisions at RHIC energy
• Suppression of bottomonia states in finite size quark gluon plasma in PbPb collisions at Large Hadron Collider
• Upsilon suppression at energies available at the BNL Relativistic Heavy Ion Collider and at the CERN Large Hadron Collider in a modified color screening scenario
• J/psi production at mid and forward rapidity at RHIC
• Charmonium suppression in a baryon rich quark-gluon plasma

Cited by in corpus (9)

• In-Medium Y-Suppression and Feed-down in UU and PbPb Collisions
• Unified Description of Charmonium Suppression in Quark-Gluon Plasma Medium at RHIC and LHC Energies
• Heavy Quarkonia in a Potential Model: Binding Energy, Decay Width, and Survival Probability
• Centrality and transverse momentum dependent suppression of ${\rm Y}(1S)$ and ${\rm Y}(2S)$ in p$-$Pb and Pb$-$Pb collisions at the CERN Large Hadron Collider
• Charmonium suppression in ultra-relativistic proton-proton collisions at LHC energies: A hint for QGP in small systems
• Bottomonium spectroscopy in the quark-gluon plasma
• pQCD approach to Charmonium regeneration in QGP at the LHC
• $\psi (2S)$ enhancement in p-Pb collision as an indication of QGP formation at the LHC
• Effect of temperature gradient on heavy quark anti-quark potential using gravity dual model