Centrality Behaviour of J/$\psi$ Production in Na50

SÉRGIO RAMOS

doi:10.1142/9789812778048_0021

Centrality Behaviour of J/$\psi$ Production in Na50

High Energy Physics - Phenomenology 2017-08-23 v1

Authors: SÉRGIO RAMOS

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Abstract

The J/ $\psi$ production in 158 A GeV Pb-Pb interactions is studied, in the dimuon decay channel, as a function of centrality, as measured with the electromagnetic or with the very forward calorimeters. After a first sharp variation at mid centrality, both patterns continue to fall down and exhibit a curvature change at high centrality values. This trend excludes any conventional hadronic model and is in agreement with a deconfined quark-gluon phase scenario. We report also preliminary results on the measured charged multiplicity, as given by a dedicated detector.

Keywords

J/psi production Pb-Pb collisions centrality quark-gluon plasma dimuon decay

Cite

@article{arxiv.hep-ph/0111429,
  title  = {Centrality Behaviour of J/$\psi$ Production in Na50},
  author = {SÉRGIO RAMOS},
  journal= {arXiv preprint arXiv:hep-ph/0111429},
  year   = {2017}
}

Comments

5 pages, 7 figures (in eps) talk given at XXXI International Symposium on Multiparticle Dynamics, Sep. 1-7, 2001, Datong China URL http://ismd31.ccnu.edu.cn/