Mass shift of charmonium states in p¯A collision

György Wolf, Gábor Balassa, Péter Kovács, Miklós Zétényi, Su Houng Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The masses of the low lying charmonium states, namely, the J/Ψ Ψ(3686), and Ψ(3770) are shifted downwards due to the second order Stark effect. In p¯+Au collisions at 6–10 GeV we study their in-medium propagation. The time evolution of the spectral functions of these charmonium states is studied with a Boltzmann–Uehling–Uhlenbeck (BUU) type transport model. We show that their in-medium mass shift can be observed in the dilepton spectrum. Therefore, by observing the dileptonic decay channel of these low lying charmonium states, especially for Ψ(3686), we can gain information about the magnitude of the gluon condensate in nuclear matter. This measurement could be performed at the upcoming PANDA experiment at FAIR.

Original languageEnglish
Pages (from-to)25-28
Number of pages4
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume780
DOIs
Publication statusPublished - 2018 May 10

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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