Differential branching fraction and angular moments analysis of the decay B 0 → K +π− μ + μ − in the K 0,2 ∗ (1430)0 regionстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 26 января 2017 г.
Аннотация:Measurements of the differential branching fraction and angular moments of the decay B00 → K++π−− μ++ μ−− in the K++π−− invariant mass range 1330 < m(K++π−−) < 1530 MeV/c22 are presented. Proton-proton collision data are used, corresponding to an integrated luminosity of 3 fb−1−1 collected by the LHCb experiment. Differential branching fraction measurements are reported in five bins of the invariant mass squared of the dimuon system, q22, between 0.1 and 8.0 GeV22 /c44. For the first time, an angular analysis sensitive to the S-, P- and D-wave contributions of this rare decay is performed. The set of 40 normalised angular moments describing the decay is presented for the q22 range 1.1-6.0 GeV22 /c44.