TY  - JOUR
A1  - Wolf, György
A1  - Balassa, Gábor
A1  - Kovács, Péter
A1  - Zétényi, Miklós
A1  - Lee, Su Houng
T1  - Mass shift of charmonium states in p¯A collision
T2  - Physics Letters B
N2  - 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.
Y1  - 2018
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/54797
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-547978
SN  - 0370-2693
SN  - 1873-2445
VL  - 780.2018
SP  - 25
EP  - 28
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -