χc1 and χc2 resonance parameters with the decays χc1,c2→J/ψμ+μ−

The decays χc1→J/ψμ+μ− and χc2→J/ψμ+μ− are observed and used to study the resonance parameters of the χc1 and χc2 mesons. The masses of these states are measured to be m(χc1)=3510.71±0.04(stat)±0.09(syst) MeV and m(χc2)=3556.10±0.06(stat)±0.11(syst) MeV, where the knowledge of the momentum scale f...

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Bibliographic Details
Main Authors:	Aaij, R, Adeva, B, Adinolfi, M, Bjørn, M, Evans, T, Gandini, P, Gruberg Cazon, B, Hadavizadeh, T, Hancock, T, Harnew, N, Hill, D, Jalocha, P, John, M, Jurik, N, Malde, S, Nandi, A, Pullen, H, Rollings, A, Vesterinen, M, Wilkinson, G, al., E, LHCb collaboration
Format:	Journal article
Language:	English
Published:	American Physical Society 2017

χc1 and χc2 resonance parameters with the decays χc1,c2→J/ψμ+μ−

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