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Mott effect at the chiral phase transition and anomalous J/Psi suppression

Gerhard R. G. Burau·David B. Blaschke·Yuri L. Kalinovsky
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Abstract

We investigate the in-medium modification of the charmonium break-up processes due to the Mott effect for light (pi) and open-charm (D, D*) mesons at the chiral/deconfinement phase transition. A model calculation for the process J/Psi + pi -> D + \bar D* + h.c. is presented which demonstrates that the Mott effect for the D-mesons leads to a threshold effect in the thermal averaged break-up cross section. This effect is suggested as an explanation of the phenomenon of anomalous J/Psi suppression in the CERN NA50 experiment.

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Gerhard R. G. Burau, David B. Blaschke, Yuri L. Kalinovsky. 2001-01-29. Mott effect at the chiral phase transition and anomalous J/Psi suppression. https://doi.org/10.1016/s0370-2693(01)00141-1

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