Highlights from NA60

/ Authors

A. Falco, R.Arnaldi, K.Banicz, K.Borer, J.Castor, B.Chaurand, W.Chen, C.Cicalo, A.Colla, P.Cortese

and 67 more authors

S.Damjanovic, A.David, A.Devaux, L.Ducroux, H.En'yo, J.Fargeix, A.Ferretti, M.Floris, P.Force, A.Forster, N.Guettet, A.Guichard, H.Gulkanian, J.Heuser, M.Keil, L.Kluberg, Z.Li, C.Lourencco, J.Lozano, F.Manso, P.Martins, A.Masoni, A.Neves, H.Ohnishi, C.Oppedisano, P.Parracho, P.Pillot, T. Poghosyan, G.Puddu, E.Radermacher, P.Ramalhete, P.Rosinský, E.Scomparin, J.Seixas, S.Serci, R.Shahoyan, P.Sonderegger, H.J.Specht, R.Tieulent, G.Usai, R.Veenhof, Harvard Univ., Infn Cagliari Infn Torino Univ. Heidelberg, Germany Cern, Geneva, S. Bern, Switzerland. Lpc, Univ., CNRS-IN2P3., Clermont-Ferrand, France Llr, E. Polytechnique, Palaiseau, F. B. N. Laboratory, Upton, Usa Infn Cagliari Univ., Infn Torino IST-CFTP, Lisbon., Portugal IPN-Lyon, U. Lyon-I, Lyon, France. Riken, Wako, Saitama, Japan YerPhI, Yerevan, Armenia

/ Abstract

NA60 measured dimuon production in p-A and In-In collisions at the CERN SPS. This paper presents a high statistics measurement of $\phi$ meson production in In-In collisions at 158 AGeV. Both the transverse momentum, rapidity, decay angular distributions and the absolute yield were measured as a function of centrality. The results are compared to previous measurements in order to shed light on the long standing $\phi$ puzzle. In addition, highlights on $\eta$ meson production and on the dimuon excess below the J/$\psi$ mass are presented.

DOI: 10.1088/0954-3899/36/6/064003