We report results from a search for the decay Bs0→ηη using 121.4 fb-1 of data collected at the (5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3×10-5 at 90% confidence level. This result represents a significant improvement over the previous most stringent limit.

Search for the decay Bs0 →ηη / Bhuyan, B., Nath, K.J., Borah, J., Adachi, I., Aihara, H., Al Said, S., Asner, D.M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A.M., Behera, P., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 105:1(2022). [10.1103/PhysRevD.105.012007]

Search for the decay Bs0 →ηη

Campajola M.;Di Capua F.;Merola M.;Pardi S.;Russo Guido;
2022

Abstract

We report results from a search for the decay Bs0→ηη using 121.4 fb-1 of data collected at the (5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3×10-5 at 90% confidence level. This result represents a significant improvement over the previous most stringent limit.
2022
Search for the decay Bs0 →ηη / Bhuyan, B., Nath, K.J., Borah, J., Adachi, I., Aihara, H., Al Said, S., Asner, D.M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A.M., Behera, P., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 105:1(2022). [10.1103/PhysRevD.105.012007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/985087
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