We present preliminary results on the production of intermediate mass dimuons in 158 A??GeV 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. ? 2006 Elsevier B.V. All rights reserved.
Charm and intermediate mass dimuons in In-In collisions
CORTESE, Pietro;
2006-01-01
Abstract
We present preliminary results on the production of intermediate mass dimuons in 158 A??GeV 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. ? 2006 Elsevier B.V. All rights reserved.File in questo prodotto:
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