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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 | 2019/06 |
| 形態種別 | その他 |
| 査読 | 査読あり |
| 標題 | Search for $Ω(2012)\to KΞ(1530) \to KπΞ$ at Belle |
| 執筆形態 | その他 |
| 著者・共著者 | Belle Collaboration,S. Jia,C. P. Shen,I. Adachi,J. K. Ahn,H. Aihara,S. Al Said,D. M. Asner,T. Aushev,R. Ayad,V. Babu,S. Bahinipati,A. M. Bakich,P. Behera,C. Beleño,J. Bennett,M. Berger,V. Bhardwaj,T. Bilka,J. Biswal,A. Bobrov,A. Bozek,M. Bračko,T. E. Browder,M. Campajola,L. Cao,D. Červenkov,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,N. Dash,G. De Nardo,F. Di Capua,S. Di Carlo,Z. Doležal,T. V. Dong,S. Eidelman,D. Epifanov, |
| 概要 | Using data samples of $e^+e^-$ collisions collected at the $\Upsilon(1S)$,
$\Upsilon(2S)$, and $\Upsilon(3S)$ resonances with the Belle detector, we search for the three-body decay of the $\Omega(2012)$ baryon to $K\pi\Xi$. This decay is predicted to dominate for models describing the $\Omega(2012)$ as a $K\Xi(1530)$ molecule. No significant $\Omega(2012)$ signals are observed in the studied channels, and 90\% credibility level upper limits on the ratios of the branching fractions relative to $K \Xi$ decay modes are obtained. |
| DOI | 10.1103/PhysRevD.100.032006 |