Observation of a peaking structure in the J/ψϕ mass spectrum from B±→J/ψϕK± decays (CROSBI ID 213418)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Mekterović, Darko ; Morović, Srećko ; Tikvica, Lucija ; ... ; Swanson, J.
engleski
Observation of a peaking structure in the J/ψϕ mass spectrum from B±→J/ψϕK± decays
A peaking structure in the J/ψϕ mass spectrum near threshold is observed in B±→J/ψϕK± decays, produced in pp collisions at View the MathML source collected with the CMS detector at the LHC. The data sample, selected on the basis of the dimuon decay mode of the J/ψ, corresponds to an integrated luminosity of 5.2 fb−1. Fitting the structure to an S -wave relativistic Breit– Wigner lineshape above a three-body phase-space nonresonant component gives a signal statistical significance exceeding five standard deviations. The fitted mass and width values are View the MathML source and View the MathML source, respectively. Evidence for an additional peaking structure at higher J/ψϕ mass is also reported.
CERN; CMS; pp; 7 TeV; J/Psi; phi
CMS Collaboration
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
