Dissociation of quarkonium in hot QCD medium: Modification of the inter-quark potential

Details Dissociation of quarkonium in hot QCD medium: Modification of the inter-quark potential Dissociation of quarkonium in hot QCD medium: Modification of the inter-quark potential

2008-08-20

arxiv.org/abs/0808.2699v3

Phys.Rev.C80:025210,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

Revised version, Revtex4, Accepted for publication in Physical Review C

Scientific paper

10.1103/PhysRevC.80.025210

We have studied the dissociation of heavy quarkonium states in a hot QCD medium by investigating the medium modifications to a heavy quark potential. Our model shows that in-medium modification causes the screening of the charge in contrast to the screening of the range of the potential. We have then employed the medium-modified potential to estimate the dissociation pattern of the charmonium and bottomonium states and also explore how the pattern changes as we go from the perturbative to nonperturbative domain in the Debye mass. The results are in good agreement with the other current theoretical works both from the spectral function analysis and the potential model study.

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