The first untagged decay-time-integrated amplitude analysis of B0s → K0S K± π∓ decays is performed using a sample corresponding to 3.0 fb^−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes B0s → K*(892)± K∓ and B0s → (anti)-K∗(892)0 (anti)-K0 are in agreement with, and more precise than, previous results. The decays B0s → K0*(1430)± K∓ and B0s → (anti)-K0∗(1430)0 (anti)-K0 are observed for the first time, each with significance over 10 standard deviations.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Amplitude Analysis of B0s → K0S K± π∓ Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(6), 0-27 [10.1007/JHEP06(2019)114].

Amplitude Analysis of B0s → K0S K± π∓ Decays

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Perazzini, S.;Pisani, F.;Vagnoni, V.;Zucchelli, S.
2019

Abstract

The first untagged decay-time-integrated amplitude analysis of B0s → K0S K± π∓ decays is performed using a sample corresponding to 3.0 fb^−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes B0s → K*(892)± K∓ and B0s → (anti)-K∗(892)0 (anti)-K0 are in agreement with, and more precise than, previous results. The decays B0s → K0*(1430)± K∓ and B0s → (anti)-K0∗(1430)0 (anti)-K0 are observed for the first time, each with significance over 10 standard deviations.
2019
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Amplitude Analysis of B0s → K0S K± π∓ Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(6), 0-27 [10.1007/JHEP06(2019)114].
Aaij, R.; Abellán Beteta, C.; Adeva, B.; Adinolfi, M.; Aidala, C.A.; Ajaltouni, Z.; Akar, S.; Albicocco, P.; Albrecht, J.; Alessio, F.; Alexander, M.;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/701059
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