Measurements of the differential branching fraction ; angular moments of the decay B0 → K+π−μ+μ− in the K+π− invariant mass range 1330 < m(K+π−) < 1530 MeV/c2 are presented. Proton-proton collision data are used, corresponding to an integrated luminosity of 3 fb−1 collected by the LHCb experiment. Differential branching fraction measurements are reported in five bins of the invariant mass squared of the dimuon system, q2, between 0.1 ; 8.0 GeV2/c4. For the first time, an angular analysis sensitive to the S-, P- ; D-wave contributions of this rare decay is performed. The set of 40 normalised angular moments describing the decay is presented for the q2 range 1.1-6.0 GeV2/c4. © 2016, The Author(s).
Differential branching fraction ; angular moments analysis of the decay B 0 → K +π− μ + μ − in the K 0,2 ∗ (1430)0 region
PAPPAGALLO, MARCO IGNAZIO;
2016-01-01
Abstract
Measurements of the differential branching fraction ; angular moments of the decay B0 → K+π−μ+μ− in the K+π− invariant mass range 1330 < m(K+π−) < 1530 MeV/c2 are presented. Proton-proton collision data are used, corresponding to an integrated luminosity of 3 fb−1 collected by the LHCb experiment. Differential branching fraction measurements are reported in five bins of the invariant mass squared of the dimuon system, q2, between 0.1 ; 8.0 GeV2/c4. For the first time, an angular analysis sensitive to the S-, P- ; D-wave contributions of this rare decay is performed. The set of 40 normalised angular moments describing the decay is presented for the q2 range 1.1-6.0 GeV2/c4. © 2016, The Author(s).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.