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

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

A bstract We report measurements of the e + e − → B B ¯ , B B ¯ ∗ , 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 identif...

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Veröffentlicht in:The journal of high energy physics 2024-10, Vol.2024 (10), p.114
Hauptverfasser: Adachi, I., Atmacan, H., Aushev, V., Bahinipati, S., Bansal, S., Becker, J., Behera, P. K., Bertemes, M., Bessner, M., Bianchi, F., Bračko, M., Browder, T. E., Campagna, Q., Cerasoli, J., Chirapatpimol, K., Dattola, F., De La Cruz-Burelo, E., De Nardo, G., De Nuccio, M., De Pietro, G., Di Canto, A., Di Capua, F., Dingfelder, J., Dorigo, M., Dossett, D., Dreyer, S., Ferber, T., Ferlewicz, D., Garcia-Hernandez, M., Ghevondyan, G., Giri, A., Goldenzweig, P., Gruberová, Z., Han, Y., Hara, T., Hershenhorn, A., Higuchi, T., Horak, P., Humair, T., Inami, K., Iwasaki, M., Jacobs, W. W., Jia, S., Kakuno, H., Kaleta, M., Kim, D. Y., Kim, K.-H., Kowalewski, R., Kuhr, T., Kunigo, T., Kwon, Y.-J., Lam, T., Leboucher, R., Leo, P., Liventsev, D., Longo, S., Lueck, T., Mantovano, M., Martinov, T., Masuda, M., Milesi, M., Miller, C., Mirra, M., Miyabayashi, K., Moser, H.-G., Mussa, R., Nakamura, I., Nakao, M., Naruki, M., Ogawa, S., Ono, H., Pakhlova, G., Park, H., Paschen, B., Passeri, A., Peruzzi, I., Pinna Angioni, G., Podobnik, T., Raeuber, G., Reuter, L., Ripp-Baudot, I., Roehrken, M., Roney, J. M., Sahoo, D., Sanders, D. A., Sato, Y., Scavino, B., Selce, A., Sobie, R. J., Sokolov, A., Spataro, S., Stavroulakis, P., Stefkova, S., van Tonder, R., Wach, B., Wang, X. L., Yin, J. H., Zeng, F., Zhang, B., Žlebčík, R.
Format: Artikel
Sprache:eng
Schlagworte:
Classical and Quantum Gravitation
Collaboration
Cross-sections
Datasets
Efficiency
Elementary Particles
Energy
Experiments
Optimization
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quarks
Regular Article - Experimental Physics
Relativity Theory
Sensors
Simulation
String Theory
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Zusammenfassung:A bstract We report measurements of the e + e − → B B ¯ , B B ¯ ∗ , 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.
ISSN:1029-8479
DOI:10.1007/JHEP10(2024)114