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J/Psi production at the STAR experiment

Author:
Federicova, Pavla  


Journal:
XXIII INTERNATIONAL BALDIN SEMINAR ON HIGH ENERGY PHYSICS PROBLEMS RELATIVISTIC NUCLEAR PHYSICS AND QUANTUM CHROMODYNAMICS (BALDIN ISHEPP XXIII)


Issue Date:
2017


Abstract(summary):

The suppression of J/Psi production in heavy-ion collisions compared to p+p collisions, caused by the color screening in the deconfined medium, has been proposed as a signature of the formation of the Quark-Gluon Plasma. However, J/Psi production rates are also sensitive to other effects such as the cold nuclear matter effects and recombination. To understand the interplay of these mechanisms, it is important to study J/Psi production for different collision geometries. In these proceedings, we present recent result on J/Psi production via the di-electron decay channel from the STAR experiment at RHIC in p+p collisions at root s(NN) =3D 200, 500 GeV, in d+Au collisions at root s(NN) =3D 200 GeV and in heavy-ion collisions, specifically Au+Au collisions at root s(NN) =3D 200 GeV and U+U collisions at root s(NN) =3D 193 GeV. We also show measurements on J/Psi production via the di-muon decay channel in p+p collisions at root s(NN) =3D 500 GeV and in Au+Au collisions at root s(NN) =3D 200 GeV using the newly installed Muon Telescope Detector.


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