Bottomonium Continuous Production from Unequilibrium Bottom Quarks in Ultrarelativistic Heavy Ion Collisions

Abstract

We employ the Langevin equation and Wigner function to describe the bottom equark dynamical evolutions and their formation into a bound state in the expanding Quark Gluon Plasma (QGP). The additional suppressions from parton inelastic scatterings are supplemented in the regenerated bottomonium. Hot medium modifications on ${\rm Y}(1S)$ properties are studied consistently by taking the bottomonium potential to be the color-screened potential from Lattice results, which affects both ${\rm Y}(1S)$ regeneration and dissociation rates. Finally, we calculated the ${\rm Y}(1S)$ nuclear modification factor $R_{AA}^{\mathrm{rege}}$ from bottom quark combination with different diffusion coefficients in Langevin equation, representing different thermalization of bottom quarks. In the central Pb-Pb collisions (b=0) at $\sqrt{s_{NN}}=5.02$ TeV, we find a non-negligible ${\rm Y}(1S)$ regeneration, and it is small in the minimum bias centrality. The connections between bottomonium regeneration and bottom quark energy loss in the heavy ion collisions are also discussed.

7 pages, 4 figures

References in corpus (13)

• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
• Radiative and Collisional Jet Energy Loss in the Quark-Gluon Plasma at RHIC
• Charmonium properties in hot quenched lattice QCD
• J/psi Production in Quark-Gluon Plasma
• Heavy quark diffusion in perturbative QCD at next-to-leading order
• Charmonium in Medium: From Correlators to Experiment
• Evidence for charmonium generation at the phase boundary in ultra-relativistic nuclear collisions
• Suppression of ${\rm Y}$(1S) at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Collision Energy Dependence of Viscous Hydrodynamic Flow in Relativistic Heavy-Ion Collisions
• Upsilon Production as a Probe for Early State Dynamics in High Energy Nuclear Collisions at RHIC
• ${\Omega }_{ccc}$ Production in High Energy Nuclear Collisions
• Heavy quarkonium photoproduction in ultrarelativistic heavy ion collisions
• Elliptic flow as a probe for $\psi (2S)$ production mechanism in relativistic heavy ion collisions

Cited by in corpus (26)

• Quarkonium In-Medium Transport Equation Derived from First Principles
• Coupled Boltzmann Transport Equations of Heavy Quarks and Quarkonia in Quark-Gluon Plasma
• Open Quantum Systems for Quarkonia
• Approach to equilibrium of quarkonium in quark-gluon plasma
• Non-Abelian Electric Field Correlator at NLO for Dark Matter Relic Abundance and Quarkonium Transport
• Quarkonium Semiclassical Transport in Quark-Gluon Plasma: Factorization and Quantum Correction
• Charmonium Coherent Photoproduction and Hadroproduction with Effects of Quark Gluon Plasma
• Strong Diffusion Effect of Charm Quarks on $J/\psi$ Production in Pb-Pb collisions at the LHC
• Nuclear modification of ${\rm Y}$ states in pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Non-equilibrium charmonium regeneration in strongly coupled quark-gluon plasma
• Prospects for quarkonium studies at the high-luminosity LHC
• ${\rm Y}(1S)$ transverse momentum spectra through dissociation and regeneration in heavy ion collisions
• Charmonium suppression in ultra-relativistic proton-proton collisions at LHC energies: A hint for QGP in small systems
• 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
• Bottom energy loss and non-prompt $J/\psi$ production in relativistic heavy ion collisions
• Bottomonium sequential suppression and strong heavy-quark potential in heavy-ion collisions
• $B_c^{+}$ Formation from Random Charm and Anti-bottom Quarks in the Quark-Gluon Plasma
• Machine learning approach to analyze heavy quark diffusion coefficient in relativistic heavy-ion collisions
• Exploring Spin Polarization of Heavy Quarks in Magnetic Fields and Hot Medium
• Quarkonium Polarization in Medium from Open Quantum Systems and Chromomagnetic Correlators
• Production of doubly charmed hadron ${\Xi }_{cc}^{++}$ and $T_{cc}^{+}$ in relativistic heavy ion collisions
• Open quantum system approach for heavy quark thermalization
• Bottomonium transport in p-Pb and Pb-Pb collisions at the LHC
• Hadronic effects on charmonium elliptic flows in heavy-ion collisions
• ${\eta }_Q$ meson photoproduction in ultrarelativistic heavy ion collisions
• Anisotropic flows of charmonium in the relativistic heavy-ion collisions