This paper presents a search for the rare flavor-changing neutral current process B0→K∗0τ+τ- using data taken with the Belle detector at the KEKB asymmetric energy e+e- collider. The analysis is based on the entire υ(4S) resonance data sample of 711 fb-1, corresponding to 772×106BB¯ pairs. In our search we fully reconstruct the companion B meson produced in the process e+e-→υ(4S)→BB¯ from its hadronic decay modes, and look for the decay B0→K∗0τ+τ- in the rest of the event. No evidence for a signal is found. We report an upper limit on the branching fraction B(B0→K∗0τ+τ-)

Search for the decay B --> K*0 τ+ τ- at the Belle experiment / Dong, T.???V., Luo, T., Adachi, I., Aihara, H., Asner, D.???M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bernlochner, F., Bessner, M., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 108:1(2023). [10.1103/physrevd.108.l011102]

Search for the decay B --> K*0 τ+ τ- at the Belle experiment

M. Campajola;G. De Nardo;F. Di Capua;M. Merola;G. Russo;
2023

Abstract

This paper presents a search for the rare flavor-changing neutral current process B0→K∗0τ+τ- using data taken with the Belle detector at the KEKB asymmetric energy e+e- collider. The analysis is based on the entire υ(4S) resonance data sample of 711 fb-1, corresponding to 772×106BB¯ pairs. In our search we fully reconstruct the companion B meson produced in the process e+e-→υ(4S)→BB¯ from its hadronic decay modes, and look for the decay B0→K∗0τ+τ- in the rest of the event. No evidence for a signal is found. We report an upper limit on the branching fraction B(B0→K∗0τ+τ-)
2023
Search for the decay B --> K*0 τ+ τ- at the Belle experiment / Dong, T.???V., Luo, T., Adachi, I., Aihara, H., Asner, D.???M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bernlochner, F., Bessner, M., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 108:1(2023). [10.1103/physrevd.108.l011102]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/938415
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