1. Low mass dimuon production in Indium-Indium collisions at 158 A GeV
- Author
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Usai, G, Arnaldi, R, Averbeck, R, Banicz, K, Castor, J, Chaurand, B, Cicalo, C, Colla, A, Cortese, P, Damjanovic, S, David, A, DE FALCO, A, Devaux, A, Drees, A, Ducroux, L, En'Yo, H, Ferretti, Alessandro, Floris, M, Force, P, Guettet, N, Guichard, A, Gulkanian, H, Heuser, J, Keil, M, Kluberg, L, Lozano, J, Lourenco, C, Manso, F, Masoni, A, Martins, P, Neves, A, Ohnishi, H, Oppedisano, C, Parracho, P, Pillot, P, Puddu, G, Radermacher, E, Ramalhete, P, Rosinsky, P, Scomparin, E, Seixas, J, Serci, S, Shahoyan, R, Sonderegger, P, Specht, Hj, Tieulent, R, Veenhof, R, Wohri, Hk, Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), NA60, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
Physics ,Particle physics ,Large Hadron Collider ,Physics and Astronomy (miscellaneous) ,010308 nuclear & particles physics ,Nuclear Theory ,chemistry.chemical_element ,01 natural sciences ,Nuclear physics ,chemistry ,0103 physical sciences ,Transverse momentum ,[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] ,High Energy Physics::Experiment ,Open charm ,Nuclear Experiment ,Nucleon ,Low Mass ,010303 astronomy & astrophysics ,Engineering (miscellaneous) ,Indium - Abstract
NA60; 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 $\theta/\omega$ production cross section ratios and on the $\theta$ transverse momentum distributions, both as a function of collisions centrality.
- Published
- 2005