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Quarkonia measurements in heavy-ion collisions in CMS

Abstract : The production of quarkonia is one of the most promising signals at LHC for the study of the production properties of quark gluon plasma. In addition to J/ψ the extent to which Upsilon is suppressed should give much insight into the new state of matter. The large muon acceptance and the high-precision tracker make the CMS detector ideal for studies of this physics. In this note, the performance of the CMS detector for quarkonia measurements in heavy-ion collisions in the dimuon channel is presented. Dimuon reconstruction efficiencies and mass resolution are calculated using detailed detector simulation. Mass spectra and signal to background ratios are estimated with a fast Monte Carlo program. Results obtained with the fast Monte Carlo program are compared with more detailed simulations.
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Contributor : Sylvie Flores <>
Submitted on : Thursday, April 26, 2007 - 3:30:02 PM
Last modification on : Tuesday, November 19, 2019 - 2:39:44 AM
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M. Bedjidian, O. Kodolova. Quarkonia measurements in heavy-ion collisions in CMS. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2007, 34, pp.N143-N175. ⟨10.1088/0954-3899/34/4/N03⟩. ⟨in2p3-00142648⟩