We report the first search for the penguin-dominated process Bs0→η′Xss¯ using a semi-inclusive method. A 121.4 fb-1 integrated luminosity ϒ(5S) data set collected by the Belle experiment, at the KEKB asymmetric-energy e+e- collider, is used. We observe no statistically significant signal and, including all uncertainties, we set a 90% confidence level upper limit on the partial branching fraction at 1.4×10-3 for M(Xss¯)≤2.4 GeV/c2.

Search for Bs0 →η′Xs s ¯ at Belle using a semi-inclusive method / Dubey, S., Browder, T.E., Aihara, H., Al Said, S., Asner, D.M., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bhuyan, B., Bilokin, S., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Campajola, M., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 104:1(2021). [10.1103/PhysRevD.104.012007]

Search for Bs0 →η′Xs s ¯ at Belle using a semi-inclusive method

Campajola M.;Di Capua F.;Merola M.;Russo G.;
2021

Abstract

We report the first search for the penguin-dominated process Bs0→η′Xss¯ using a semi-inclusive method. A 121.4 fb-1 integrated luminosity ϒ(5S) data set collected by the Belle experiment, at the KEKB asymmetric-energy e+e- collider, is used. We observe no statistically significant signal and, including all uncertainties, we set a 90% confidence level upper limit on the partial branching fraction at 1.4×10-3 for M(Xss¯)≤2.4 GeV/c2.
2021
Search for Bs0 →η′Xs s ¯ at Belle using a semi-inclusive method / Dubey, S., Browder, T.E., Aihara, H., Al Said, S., Asner, D.M., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bhuyan, B., Bilokin, S., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Campajola, M., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 104:1(2021). [10.1103/PhysRevD.104.012007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/890255
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