Measurements of the differential branching fraction and angular moments of the decay B0 → K+ π− μ+ μ− in the K+ π− invariant mass range 1330 < m(K+ π−) < 1530 MeV/c^2 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, q^2, between 0.1 and 8.0 GeV^2/c^4. 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 q^2 range 1.1-6.0 GeV^2/c^4.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2016). Differential Branching Fraction and Angular Moments Analysis of the Decay B0 → K+ π− μ+ μ− in the K0,2∗(1430)0 Region. JOURNAL OF HIGH ENERGY PHYSICS, 2016(12), 0-23 [10.1007/JHEP12(2016)065].

Differential Branching Fraction and Angular Moments Analysis of the Decay B0 → K+ π− μ+ μ− in the K0,2∗(1430)0 Region

BETTI, FEDERICO;Capriotti, L.;CARBONE, ANGELO;FERRARI, FABIO;GALLI, DOMENICO;MUSSINI, MANUEL;PATRIGNANI, CLAUDIA;PERAZZINI, STEFANO;VAGNONI, VINCENZO MARIA;ZANGOLI, MARIA;ZUCCHELLI, STEFANO;
2016

Abstract

Measurements of the differential branching fraction and angular moments of the decay B0 → K+ π− μ+ μ− in the K+ π− invariant mass range 1330 < m(K+ π−) < 1530 MeV/c^2 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, q^2, between 0.1 and 8.0 GeV^2/c^4. 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 q^2 range 1.1-6.0 GeV^2/c^4.
2016
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2016). Differential Branching Fraction and Angular Moments Analysis of the Decay B0 → K+ π− μ+ μ− in the K0,2∗(1430)0 Region. JOURNAL OF HIGH ENERGY PHYSICS, 2016(12), 0-23 [10.1007/JHEP12(2016)065].
Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alv...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/576115
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