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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 発行・発表の年月 | 2020/09 |
| 形態種別 | その他 |
| 標題 | Search for transitions from $Υ(4S)$ and $Υ(5S)$ to $η_b(1S)$ and $η_b(2S)$ with emission of an $ω$ meson |
| 執筆形態 | その他 |
| 著者・共著者 | 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. Fe |
| 概要 | 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. |
| PermalinkURL | http://arxiv.org/abs/2009.11720v1 |
| researchmap用URL | http://arxiv.org/pdf/2009.11720v1 |