Study of charmonium decays to KS0Kπ in the B→(KS0Kπ)K channels

A study of the Bþ → K0 SKþK−πþ and Bþ → K0 SKþKþπ− decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K0 SKπ invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements...

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Veröffentlicht in:	Physical review. D 2023-08, Vol.108 (3)
Hauptverfasser:	Abudinén, F., Akiba, K., Bailly-reyre, A., Basels, J. M., Bay, A., Belous, K., Belyaev, I., Bencivenni, G., Bishop, F. C. R., Boente Garcia, O., Borsuk, J. T., Calefice, L., Calvi, M., Carbone, A., Charles, M., Chernyshenko, S., Cholak, S., Chubykin, A., Clemencic, M., Craik, D. C., Davies, J. E., De Aguiar Francisco, O., De Miranda, J. M., Decamp, D., Dettori, F., Douglas, L., Eisenhardt, S., Ellbracht, J., Farry, S., Felkowski, L. F, Fitzpatrick, C., Fuehring, Q., Gioventù, A., Grieser, N. A., Gruberg Cazon, B. R., Henry, L., Iniukhin, A., Jones, T. P., Karacson, M., Kenzie, M., Klaver, S., Kolk, L., Kubis, S., Liu, S., Lyu, X. -R., Maccolini, S., Mackay, I., Maevskiy, A., Mariani, S., Martellotti, G., Matteuzzi, C., Maurice, E., Meloni, S., Meyer Garcia, L., Mitreska, B., Monteil, S., Muheim, F., Mulder, M., Murphy, C. H., Murta, R., Naik, P., Nunez, C., Oldeman, R., Owen, P., Parker, W., Petruzzo, M., Qi, H. R., Qu, S., Rama, M., Ramos Pernas, M., Redi, F., Ricci, A. M., Rollings, A., Sagidova, N., Sanderswood, I., Saranin, D., Schael, S., Scherl, S., Semennikov, A., Shmanin, E., Simone, S., Sriskaran, V., Stevens, H., Tan, Y., T’Jampens, S., Tuci, G., Usachov, A., Vilella Figueras, E., Wang, J., Wang, M., Wang, X., Westhenry, B. D. C., Williams, M., Wormser, G., Xu, A., Xu, L., Yang, Z., Zdybal, M., Zhang, S., Zhu, X.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy & Astrophysics Physics
Online-Zugang:	Volltext
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Zusammenfassung:	A study of the Bþ → K0 SKþK−πþ and Bþ → K0 SKþKþπ− decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K0 SKπ invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements of the ηc and ηcð2SÞ resonance parameters are performed and branching fraction measurements are obtained for Bþ decays to ηc, J=ψ, ηcð2SÞ and χc1 resonances. In particular, the first observation and branching fraction measurement of Bþ → χc0K0πþ is reported as well as first measurements of the Bþ → K0KþK−πþ and Bþ → K0KþKþπ− branching fractions. Dalitz plot analyses of ηc → K0 SKπ and ηcð2SÞ → K0 SKπ decays are performed. A new measurement of the amplitude and phase of the Kπ S-wave as functions of the Kπ mass is performed, together with measurements of the K 0ð1430Þ, K 0ð1950Þ and a0ð1700Þ parameters. Finally, the branching fractions of χc1 decays to K resonances are also measured.
ISSN:	2470-0010
DOI:	10.1103/PhysRevD.108.032010