Study of Bc+ meson decays to charmonia plus multihadron final states

• Published in: The journal of high energy physics 2023-07, Vol.2023 (7), p.198
• Main Authors: Alessio, F., Aliouche, Z., Artamonov, A., Audurier, B., Barbetti, M., Bellee, V., Bolognani, C. S., Calabrese, R., Carboni, G., Cervenkov, D., Cholak, S., De Capua, S., de Vries, J. A., Debernardis, F., Esen, S., Evans, T., Fan, Y., Filippov, S., Fleuret, F., Forty, R., Gandelman, M., Gaspar, C., Gersabeck, E., Giemza, H. K., Giza, M. A., Göbel, C., Haimberger, J., Hill, D., Hou, Y., Iniukhin, A., Jevtic, V., Karpenkov, D., Keizer, F., Kenzie, M., Kharisova, A., Kopecna, R., Kostiuk, I., Lanfranchi, G., Langenbruch, C., Lazzaroni, M., Legotin, S., Lindner, R., Lopes, J. H., Lopez Huertas, A., Lovell, G. H., Maciuc, F., Madhan Mohan, L. R., Malde, S., Malinin, A., Matev, R., Mauricio, J., Mazurek, M., McHugh, N. T., Meadows, B., Monroy, I. A., Moron, J., Murta, R., Muzzetto, P., Nandakumar, R., Normand, C., Oyanguren, A., Pais, P. R., Parkes, C., Pica, L., Pinci, D., Plews, J., Poslavskii, S., Qu, S., Ribatti, R., Richardson-Slipper, M., Salomoni, M., Schmitt, S., Sciascia, B., Semennikov, A., Seuthe, A., Smith, M., Solomin, A., Solovev, A., Spaan, B., Spiridenkov, E., Stahl, M., Strekalina, D., Svihra, P., Tan, Y., Tomassetti, L., Valassi, A., Vazquez Regueiro, P., Vázquez Sierra, C., Vorobyev, V., Wei, Y., Williams, M., Wilson, F. F., Wotton, S. A., Xu, L., Yeroshenko, V., Zhang, L., Zhang, Y., Zhou, X., Zhu, X., Zhukov, V.
• Format: Article
• Language: English
• Subjects: Classical and Quantum Gravitation; Collaboration; Elementary Particles; High energy physics; Kaons; Light; Luminosity; Particle decay; Physics; Physics and Astronomy; Pions; Protons; Quantum Field Theories; Quantum Field Theory; Quantum Physics; Quarks; Regular Article - Experimental Physics; Relativity Theory; Sensors; Simulation; Software; String Theory
• ISSN: 1029-8479
• DOI: 10.1007/JHEP07(2023)198

A bstract Four decay modes of the B c + meson into a J/ψ meson and multiple charged kaons or pions are studied using proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb − 1 . The decay B c + → J/ψK + K − π + π + π − is observed for the first time, and evidence for the B c + → J/ψ 4 π + 3 π − decay is found. The decay B c + → J/ψ 3 π + 2 π − is observed and the previous observation of the B c + → ψ (2 S ) π + π + π − decay is confirmed using the ψ (2 S ) → J/ψπ + π − decay mode. Ratios of the branching fractions of these four B c + decay channels are measured.