Quantum mechanical model for J/psi suppression in the LHC era
arXiv:1302.0831 · doi:10.1016/j.nuclphysa.2014.02.020
Abstract
We discuss the interplay of screening, absorption and regeneration effects, on the quantum mechanical evolution of quarkonia states, within a time-dependent harmonic oscillator (THO) model with complex oscillator strength. We compare the results with data for R_AA/R_AA(CNM) from CERN and RHIC experiments. In the absence of a measurement of cold nuclear matter (CNM) effects at LHC we estimate their role and interpret the recent data from the ALICE experiment. We also discuss the temperature dependence of the real and imaginary parts of the oscillator frequency which stand for screening and absorption/regeneration, respectively. We point out that a structure in the J/psi suppression pattern for In-In collisions at SPS is possibly related to the recently found X(3872) state in the charmonium spectrum. Theoretical support for this hypothesis comes from the cluster expansion of the plasma Hamiltonian for heavy quarkonia in a strongly correlated medium.
8 pages, 5 figures, Introduction enlarged, References added
References in corpus (14)
- Heavy quarkonium: progress, puzzles, and opportunities
- The QCD equation of state with dynamical quarks
- Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
- Real and imaginary-time correlators in a thermal medium
- Quarkonium states in an anisotropic QCD plasma
- Thermal imaginary part of a real-time static potential from classical lattice gauge theory simulations
- T-Matrix Approach to Quarkonium Correlation Functions in the QGP
- Hard probes in heavy ion collisions at the LHC: heavy flavour physics
- Perspectives on heavy-quarkonium production at the LHC
- J/psi dissociation by light mesons in an extended Nambu Jona-Lasinio model
- T-matrix approach to heavy quark diffusion in the QGP
- ALICE results on quarkonia
- Quarkonia and QGP studies
- Charmonium dissociation and heavy quark transport in hot quenched lattice QCD