Ab Initio Calculation of Finite Temperature Charmonium Potentials

Abstract

The interquark potential in charmonium states is calculated for the first time in both the zero and non-zero temperature phases from a first-principles lattice QCD calculation. Simulations with two dynamical quark flavours were used with temperatures T in the range 0.4 T_c \lesssim T \lesssim 1.7 T_c, where T_c is the deconfining temperature. The correlators of point-split operators were analysed to gain spatial information about the charmonium states. A method, introduced by the HAL QCD collaboration and based on the Schroedinger equation, was applied to obtain the interquark potential. We find a clear temperature dependence, with the central potential becoming flatter (more screened) as the temperature increases.

arXiv comment5 pages

References in corpus (33)

• Experimental and Theoretical Challenges in the Search for the Quark Gluon Plasma: The STAR Collaboration's Critical Assessment of the Evidence from RHIC Collisions
• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• The Chroma Software System for Lattice QCD
• (Non)Thermal Aspects of Charmonium Production and a New Look at J/$\psi$ Suppression
• Nuclear Force from Lattice QCD
• Static quark-antiquark pairs at finite temperature
• Static quark anti-quark interactions in zero and finite temperature QCD. I. Heavy quark free energies, running coupling and quarkonium binding
• Medium Modifications and Production of Charmonia at LHC
• Hadron-Hadron Interactions from Imaginary-time Nambu-Bethe-Salpeter Wave Function on the Lattice
• Theoretical Foundation of the Nuclear Force in QCD and its applications to Central and Tensor Forces in Quenched Lattice QCD Simulations
• Static quark anti-quark free energy and the running coupling at finite temperature
• Complex Heavy-Quark Potential at Finite Temperature from Lattice QCD
• J/psi Transverse Momentum Distribution in High Energy Nuclear Collisions
• Heavy Quarkonia in Quark-Gluon Plasma
• Suppression of Upsilon excited states in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV
• Charmonium at high temperature in two-flavor QCD
• Can quarkonia survive deconfinement ?
• First proton-proton collisions at the LHC as observed with the ALICE detector: measurement of the charged particle pseudorapidity density at $\sqrt{s}$ = 900 GeV
• What happens to the Upsilon and eta_b in the quark-gluon plasma? Bottomonium spectral functions from lattice QCD
• Heavy quarkonium in any channel in resummed hot QCD
• Quarkonium states in an anisotropic QCD plasma
• Bottomonium above deconfinement in lattice nonrelativistic QCD
• On Charm Production near the Phase Boundary
• The Polyakov Loop and its Relation to Static Quark Potentials and Free Energies
• Charmonium potential from full lattice QCD
• Disentangling the timescales behind the non-perturbative heavy quark potential
• Interquark potential with finite quark mass from lattice QCD
• Heavy-Quark Free Energy, Debye Mass, and Spatial String Tension at Finite Temperature in Two Flavor Lattice QCD with Wilson Quark Action
• S wave bottomonium states moving in a quark-gluon plasma from lattice NRQCD
• Dynamical QCD simulations on anisotropic lattices
• Measuring the Upsilon Nuclear Modification Factor at STAR
• On static quark anti-quark potential at non-zero temperature
• Static potentials for quarkonia at finite temperatures

Cited by in corpus (8)

• Valence quark distributions of the proton from maximum entropy approach
• Schrödinger spectrum generated by the Cornell potential
• Bethe-Salpeter amplitudes of Upsilons
• The Charmonium Potential at Non-Zero Temperature
• Quark-gluon plasma phenomenology from the lattice
• Charmonium Potentials At Non-Zero Temperature
• The Debye Length and the Running Coupling of QCD: a Potential and Phenomenological Approach
• Bottomonium in the plasma: lattice results