A first look at open charm production in Indium-Indium collisions at SPS energies

R Shahoyan, 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 Laurenco, 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, P Sonderegger, HJ Specht, R Tieulent, G Usai, R Veenhof, HK Wohri

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

NA60 is an experiment at the CERN-SPS devoted to the study of dimuon production in heavy-ion and proton-nucleus collisions. The main topics under study are low mass vector meson production, J/psi production and suppression, and the sources of the dimuon continuum in the mass range 1.2 - 2.7 GeV/c(2). In 2003, NA60 collected similar to 230 million dimuon events from Indium-Indium collisions. We present preliminary results of the analysis of this data sample in view of measuring the open charm contribution to the dimuon spectrum. Although we are still working on the final background subtraction procedure, we can already demonstrate that the detector performance is good enough to allow the separation of prompt dimuons from muon pairs originating in distant D (D) over bar decays.
Lingua originaleInglese
pagine (da-a)209-213
Numero di pagine5
RivistaTHE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Volume43
Numero di pubblicazione1-4
DOI
Stato di pubblicazionePubblicato - 1 gen 2005

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