Abstract
The NA60 experiment studies open charm and prompt dimuon production in proton-nucleus and nucleus-nucleus collisions at the CERN SPS. During 2003 the experiment collected data in Indium-Indium collisions at 158 GeV per nucleon. Almost 240 million dimuon events were recorded. New results on J/psi. suppression, open-charm production and low mass dimuons should help clarify some interesting questions left open by previous experiments. After a brief detector description, this paper focuses on the analysis of the low mass dimuons. Preliminary results are presented on the phi/psi. production cross section ratios and on the phi transverse momentum distributions, both as a function of collision centrality.
Lingua originale | Inglese |
---|---|
pagine (da-a) | 415-420 |
Numero di pagine | 6 |
Rivista | THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS |
Volume | 43 |
Numero di pubblicazione | 1-4 |
DOI | |
Stato di pubblicazione | Pubblicato - 1 gen 2005 |