Low mass dimuon production in indium-indium collisions at 158 A GeV

G Usai, R Arnaldi, R Averbeck, K Banicz, J Castor, B Chaurand, C Cicalo, A Colla, Pietro CORTESE, S Damjanovic, A David, Falco A de, A Devaux, A Drees, L Ducroux, H En'yo, A Ferretti, M Floris, P Force, N GuettetA Guichard, H Gulkanian, J Heuser, M Keil, L Kluberg, J Lozano, C Lourenco, F Manso, A Masoni, P Martins, A Neves, H Ohnishi, C Oppedisano, P Parracho, P Pillot, G Puddu, E Radermacher, P Ramalhete, P Rosinsky, E Scomparin, J Seixas, S Serci, R Shahoyan, P Sonderegger, HJ Specht, R Tieulent, R Veenhof, HK Wohri

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

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 originaleInglese
pagine (da-a)415-420
Numero di pagine6
RivistaTHE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Volume43
Numero di pubblicazione1-4
DOI
Stato di pubblicazionePubblicato - 1 gen 2005

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