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تسجيل مستخدم جديدJ/$psi$ production in In-In and p-A collisions
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E. Scomparin
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The NA60 experiment studies dimuon production in In-In and p-A collisions at the CERN SPS. We report recent results on jpsi production, measured through its muon pair decay. As a function of centrality, we show that in In-In the jpsi yield is suppressed beyond expectations from nuclear absorption. We present also for the first time results on jpsi production in p-A collisions at 158 GeV, the same energy of the nucleus-nucleus data. For both p-A and In-In we show preliminary results on psip suppression. Finally, we have studied the kinematical distributions of the jpsi produced in In-In collisions. We present results on transverse momentum and rapidity, as well as on the angular distribution of the jpsi decay products.
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