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arXiv · 2009.11720

Search for transitions from $\Upsilon(4S)$ and $\Upsilon(5S)$ to $\eta_b(1S)$ and $\eta_b(2S)$ with emission of an $\omega$ meson

Belle Collaboration·P. Oskin·R. Mizuk·H. Aihara·D. M. Asner·H. Atmacan·V. Aulchenko·T. Aushev·R. Ayad·P. Behera·K. Belous·J. Bennett·M. Bessner·V. Bhardwaj·B. Bhuyan·T. Bilka·J. Biswal·G. Bonvicini·A. Bozek·M. Bračko·T. E. Browder·M. Campajola·L. Cao·D. Červenkov·P. Chang·V. Chekelian·A. Chen·B. G. Cheon·K. Chilikin·H. E. Cho·K. Cho·S. -K. Choi·Y. Choi·S. Choudhury·D. Cinabro·S. Cunliffe·G. De Nardo·R. Dhamija·F. Di Capua·J. Dingfelder·Z. Doležal·T. V. Dong·S. Dubey·S. Eidelman·D. Epifanov·T. Ferber·D. Ferlewicz·B. G. Fulsom·R. Garg·V. Gaur·N. Gabyshev·A. Garmash·A. Giri·P. Goldenzweig·B. Golob·K. Gudkova·C. Hadjivasiliou·T. Hara·O. Hartbrich·H. Hayashii·M. T. Hedges·M. Hernandez Villanueva·W. -S. Hou·C. -L. Hsu·T. Iijima·K. Inami·A. Ishikawa·R. Itoh·M. Iwasaki·Y. Iwasaki·W. W. Jacobs·S. Jia·Y. Jin·C. W. Joo·K. K. Joo·A. B. Kaliyar·K. H. Kang·G. Karyan·H. Kichimi·C. Kiesling·C. H. Kim·D. Y. Kim·Y. -K. Kim·K. Kinoshita·P. Kodyš·S. Korpar·D. Kotchetkov·P. Križan·R. Kroeger·P. Krokovny·R. Kulasiri·R. Kumar·K. Kumara·Y. -J. Kwon·J. S. Lange·S. C. Lee·P. Lewis·C. H. Li·L. K. Li·L. Li Gioi
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Abstract

Using data collected in the Belle experiment at the KEKB asymmetric-energy $e^+e^-$ collider we search for transitions $\Upsilon(4S) \rightarrow \eta_b(1S)\omega$, $\Upsilon(5S) \rightarrow \eta_b(1S)\omega$ and $\Upsilon(5S) \rightarrow \eta_b(2S)\omega$. No significant signals are observed and we set 90\% confidence level upper limits on the corresponding visible cross sections: $0.2 ~\textrm{pb}, 0.4 ~\textrm{pb}$ and $1.9 ~\textrm{pb}$, respectively.

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Belle Collaboration, P. Oskin, R. Mizuk, H. Aihara, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, J. Biswal, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. Campajola, L. Cao, D. Červenkov, P. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, H. E. Cho, K. Cho, S. -K. Choi, Y. Choi, S. Choudhury, D. Cinabro, S. Cunliffe, G. De Nardo, R. Dhamija, F. Di Capua, J. Dingfelder, Z. Doležal, T. V. Dong, S. Dubey, S. Eidelman, D. Epifanov, T. Ferber, D. Ferlewicz, B. G. Fulsom, R. Garg, V. Gaur, N. Gabyshev, A. Garmash, A. Giri, P. Goldenzweig, B. Golob, K. Gudkova, C. Hadjivasiliou, T. Hara, O. Hartbrich, H. Hayashii, M. T. Hedges, M. Hernandez Villanueva, W. -S. Hou, C. -L. Hsu, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, W. W. Jacobs, S. Jia, Y. Jin, C. W. Joo, K. K. Joo, A. B. Kaliyar, K. H. Kang, G. Karyan, H. Kichimi, C. Kiesling, C. H. Kim, D. Y. Kim, Y. -K. Kim, K. Kinoshita, P. Kodyš, S. Korpar, D. Kotchetkov, P. Križan, R. Kroeger, P. Krokovny, R. Kulasiri, R. Kumar, K. Kumara, Y. -J. Kwon, J. S. Lange, S. C. Lee, P. Lewis, C. H. Li, L. K. Li, L. Li Gioi. 2020-09-24. Search for transitions from $\Upsilon(4S)$ and $\Upsilon(5S)$ to $\eta_b(1S)$ and $\eta_b(2S)$ with emission of an $\omega$ meson. https://arxiv.org/abs/2009.11720

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