Probing QGP droplets with charmonium in high-multiplicity proton-proton collisions

Abstract

We study the hot medium effects in high-multiplicity proton-proton (pp) collisions at $\sqrt{s_{NN}}=13$ TeV via the charmonium probes. The hot medium is described with the hydrodynamic model, while charmonium evolutions in the medium are studied with a time-dependent Schrödinger equation. The hot medium dissociation on charmonium is considered with the temperature-dependent complex potential parametrized with the results from lattice QCD calculations. The ratio ${\sigma }_{\psi (2S)}/{\sigma }_{J/\psi }$ of $J/\psi$ and $\psi (2S)$ production cross sections are calculated and compared with the LHCb experimental data in pp collisions. Our calculations explain the charmonium relative suppression in different transverse momentum and multiplicity bins. The suppression of this ratio is mainly affected by the effects of the deconfined medium. It is less affected by the initial effects before the generation of the heavy quark pair. We suggest this to be a clear signal of the small QGP droplets generated in high multiplicity pp collisions.

arXiv comment8 pages, 10 figures

References in corpus (47)

• The chiral and deconfinement aspects of the QCD transition
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
• Quark Coalescence for Charmed Mesons in Ultrarelativistic Heavy-Ion Collisions
• Creating small circular, elliptical, and triangular droplets of quark-gluon plasma
• Colour Deconfinement and Quarkonium Binding
• Statistical hadronization of charm in heavy-ion collisions at SPS, RHIC and LHC
• One fluid to rule them all: viscous hydrodynamic description of event-by-event central p+p, p+Pb and Pb+Pb collisions at $\sqrt{s}=5.02$ TeV
• Color Screening Melts Quarkonium
• J/psi Production in Quark-Gluon Plasma
• Sequential Regeneration of Charmonia in Heavy-Ion Collisions
• Heavy Quarkonium in Extreme Conditions
• Color Screening and Regeneration of Bottomonia in High-Energy Heavy-Ion Collisions
• Defining the Proton Radius: a Unified Treatment
• Thermal Upsilon(1s) and chi_b1 suppression in sqrt(s_NN)=2.76 TeV Pb-Pb collisions at the LHC
• The Schrödinger-Langevin equation with and without thermal fluctuations
• The approach to equilibrium of a quarkonium in a quark-gluon plasma
• Hydrodynamic Collectivity in Proton--Proton Collisions at 13 TeV
• Magnetic Field Effect on Charmonium Production in High Energy Nuclear Collisions
• Upsilon Production as a Probe for Early State Dynamics in High Energy Nuclear Collisions at RHIC
• Probing the partonic degrees of freedom in high multiplicity p-Pb collisions at $\sqrt{s_{NN}}=$ 5.02 TeV
• Quarkonium inside Quark-Gluon Plasma: Diffusion, Dissociation, Recombination and Energy Loss
• Coupled Boltzmann Transport Equations of Heavy Quarks and Quarkonia in Quark-Gluon Plasma
• Static quark anti-quark interactions at non-zero temperature from lattice QCD
• In-Medium Charmonium Production in Proton-Nucleus Collisions
• Heavy quark potential in quark-gluon Plasma: Deep neural network meets lattice quantum chromodynamics
• Complex heavy-quark potential and Debye mass in a gluonic medium from lattice QCD
• Collisional and thermal dissociation of $J/\psi$ and ${\rm Y}$ states at the LHC
• The 3D structure of anisotropic flow in small collision systems at the Relativistic Heavy Ion Collider
• Extraction of the Heavy-Quark Potential from Bottomonium Observables in Heavy-Ion Collisions
• Cold and Hot Nuclear Matter Effects on Charmonium Production in p+Pb Collisions at LHC Energy
• Searching for small droplets of hydrodynamic fluid in proton--proton collisions at the LHC
• Thermal Production of Charmonia at the LHC Energies
• Strong Diffusion Effect of Charm Quarks on $J/\psi$ Production in Pb-Pb collisions at the LHC
• Probing the in-Medium QCD Force by Open Heavy-Flavor Observables
• ψ^\prime Production and B Decay in Heavy Ion Collisions at LHC
• Precise Numerical Solutions of Potential Problems Using Crank-Nicholson Method
• Velocity Dependence of Charmonium Dissociation Temperature in High-Energy Nuclear Collisions
• Probe the color screening in proton-nucleus collisions with complex potentials
• Charmonium Transport in Ultra-Relativistic Heavy-Ion Collisions at the LHC
• Bottomonium sequential suppression and strong heavy-quark potential in heavy-ion collisions
• Gluon dissociation of J/psi beyond the dipole approximation
• Effect of finite volume on thermodynamics of quark-hadron matter
• Heavy quarkonium dissociation in the finite space of heavy-ion collisions
• Bottomonium transport in p-Pb and Pb-Pb collisions at the LHC
• Study of quarkonium in QGP from unquenched lattice QCD
• Fast Heating Dissociation of Upsilon(1S) in Heavy Ion Collisions at RHIC

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