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Simulation study of χc→J/Ψ+γ detection with J/Ψ→e+e− in pp collisions in the ALICE experiment at LHCGonzález, P.; de Guevara, P. Ladrón; Torres, E. López; Marín, A.; Serradilla, E.
European physical journal. C, Particles and fields, 06/2009, Letnik: 61, Številka: 4Journal Article
We present Monte Carlo preliminary results about the feasibility to detect the χ c family in p-p collisions at 14 TeV in the ALICE Central Barrel at CERN LHC. The χ c 1 and χ c 2 were forced to decay in the radiative channel J / Ψ + γ → e + e − + γ and were merged with a proton-proton non-biased collision. After Monte Carlo transport and simulation of the detector response, the e + , e − and converted γ were reconstructed and identified in the ALICE ITS, TPC and TRD detectors. Separate signals corresponding to γ from χ c 1 and from χ c 2 were observed. The position and relative weight of the fit to gaussians agreed with the input values within the statistical limits.
