A study of the B+ → K0S K+ K− π+ and B+ → K0S K+ K+ π− decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K0S K π invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements of the ηc and ηc(2S) resonance parameters are performed and branching fraction measurements are obtained for B+ decays to ηc, J/ψ, ηc(2S) and χc1 resonances. In particular, the first observation and branching fraction measurement of B+ → χc0 K0 π+ is reported as well as first measurements of the B+ → K0 K+ K− π+ and B+ → K0 K+ K+ π− branching fractions. Dalitz plot analyses of ηc → K0S K π and ηc(2S) → K0S K π decays are performed. A new measurement of the amplitude and phase of the K π S-wave as functions of the K π mass is performed, together with measurements of the K*0(1430), K*0(1950) and a0(1700) parameters. Finally, the branching fractions of χc1 decays to K* resonances are also measured.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Study of Charmonium Decays to K0S K π in the B → (K0S K π) K Channels. PHYSICAL REVIEW D, 108(3), 1-41 [10.1103/PhysRevD.108.032010].

Study of Charmonium Decays to K0S K π in the B → (K0S K π) K Channels

Carbone, A.;Ferrari, F.;Galli, D.;Manuzzi, D.;Patrignani, C.;Spedicato, E.;Villa, A.;Zucchelli, S.;
2023

Abstract

A study of the B+ → K0S K+ K− π+ and B+ → K0S K+ K+ π− decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K0S K π invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements of the ηc and ηc(2S) resonance parameters are performed and branching fraction measurements are obtained for B+ decays to ηc, J/ψ, ηc(2S) and χc1 resonances. In particular, the first observation and branching fraction measurement of B+ → χc0 K0 π+ is reported as well as first measurements of the B+ → K0 K+ K− π+ and B+ → K0 K+ K+ π− branching fractions. Dalitz plot analyses of ηc → K0S K π and ηc(2S) → K0S K π decays are performed. A new measurement of the amplitude and phase of the K π S-wave as functions of the K π mass is performed, together with measurements of the K*0(1430), K*0(1950) and a0(1700) parameters. Finally, the branching fractions of χc1 decays to K* resonances are also measured.
2023
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Study of Charmonium Decays to K0S K π in the B → (K0S K π) K Channels. PHYSICAL REVIEW D, 108(3), 1-41 [10.1103/PhysRevD.108.032010].
Aaij, R.; Abdelmotteleb, A.S.W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Afsharnia, H.; Agapopoulou, C...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/953205
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