We present preliminary results on the production of intermediate mass dimuons in 158 Adot operatorGeV In-In collisions at the CERN SPS. NA38 and NA50 observed a strong excess in this region in S-U and Pb-Pb interactions with respect to the dimuon production rate expected from p-A data. Thanks to the use of a pixel vertex telescope, NA60 can separate the prompt dimuons from the pairs resulting from open charm decays and show that the excess dimuons are of prompt origin.

Charm and intermediate mass dimuons in In-In collisions

FERRETTI, Alessandro;
2006

Abstract

We present preliminary results on the production of intermediate mass dimuons in 158 Adot operatorGeV In-In collisions at the CERN SPS. NA38 and NA50 observed a strong excess in this region in S-U and Pb-Pb interactions with respect to the dimuon production rate expected from p-A data. Thanks to the use of a pixel vertex telescope, NA60 can separate the prompt dimuons from the pairs resulting from open charm decays and show that the excess dimuons are of prompt origin.
18th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions: Quark Matter 2005 (QM 2005)
Budapest, Hungary
4-9 Aug 2005
774
677
680
R. SHAHOYAN; R. ARNALDI; R. AVERBECK; K. BANICZ; J. CASTOR; B. CHAURAND; C. CICALO; A. COLLA; P. CORTESE; S. DAMJANOVIC; A. DAVID; A. DE FALCO; A. DEVAUX; A. DREES; L. DUCROUX; H. EN'YO; A. FERRETTI; M. FLORIS; P. FORCE; N. GUETTET; A. GUICHARD; H. GULKANIAN; J. HEUSER; M. KEIL; L. KLUBERG; C. LOURENCO; J. LOZANO; 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; H.J. SPECHT; R. TIEULENT; G. USAI; R. VEENHOF; H.K. WOEHRI
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2318/22171
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