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 \(\phi/\omega\) production cross section ratios and on the \(\phi\) transverse momentum distributions, both as a function of collision centrality.
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Arrival of the final proofs: 1 July 2005
PACS:
25.75.Dw 25.75.Nq
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Usai, G., The NA60 Collaboration. Low mass dimuon production in Indium-Indium collisions at 158 A GeV. Eur. Phys. J. C 43, 415–420 (2005). https://doi.org/10.1140/epjc/s2005-02209-x
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DOI: https://doi.org/10.1140/epjc/s2005-02209-x