We report measurements of the e+e− → BB¯, BB¯∗, and B∗B¯∗ cross sections at four energies, 10653, 10701, 10746 and 10805 MeV, using data collected by the Belle II experiment. We reconstruct one B meson in a large number of hadronic final states and use its momentum to identify the production process. In the first 2 – 5 MeV above B∗B¯∗ threshold, the e+e− → B∗B¯∗ cross section increases rapidly. This may indicate the presence of a pole close to the threshold.

Measurement of the energy dependence of the e+e−→BB¯, BB¯∗, and B∗B¯∗ cross sections at Belle II / Adachi, I., Aggarwal, L., Ahmed, H., Aihara, H., Akopov, N., Aloisio, A., Althubiti, N., Anh Ky, N., Asner, D.M., Atmacan, H., Aushev, T., Aushev, V., Aversano, M., Ayad, R., Babu, V., Bae, H., Bahinipati, S., Bambade, P., Banerjee, S., Bansal, S., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:10(2024). [10.1007/JHEP10(2024)114]

Measurement of the energy dependence of the e+e−→BB¯, BB¯∗, and B∗B¯∗ cross sections at Belle II

Aloisio A.;Campajola M.;De Nardo G.;Di Capua F.;Gaudino G.;Giordano R.;Merola M.;Mirra M.;Pardi S.;Russo Guido;
2024

Abstract

We report measurements of the e+e− → BB¯, BB¯∗, and B∗B¯∗ cross sections at four energies, 10653, 10701, 10746 and 10805 MeV, using data collected by the Belle II experiment. We reconstruct one B meson in a large number of hadronic final states and use its momentum to identify the production process. In the first 2 – 5 MeV above B∗B¯∗ threshold, the e+e− → B∗B¯∗ cross section increases rapidly. This may indicate the presence of a pole close to the threshold.
2024
Measurement of the energy dependence of the e+e−→BB¯, BB¯∗, and B∗B¯∗ cross sections at Belle II / Adachi, I., Aggarwal, L., Ahmed, H., Aihara, H., Akopov, N., Aloisio, A., Althubiti, N., Anh Ky, N., Asner, D.M., Atmacan, H., Aushev, T., Aushev, V., Aversano, M., Ayad, R., Babu, V., Bae, H., Bahinipati, S., Bambade, P., Banerjee, S., Bansal, S., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:10(2024). [10.1007/JHEP10(2024)114]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/985725
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