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Search for Ω(2012)to KXi(1530) to KπXi at Belle

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arxiv 1906.00194 v1 pith:HFKXJKTM submitted 2019-06-01 hep-ex hep-ph

Search for Ω(2012)to KXi(1530) to KπXi at Belle

Belle Collaboration: S. Jia , C. P. Shen , I. Adachi , J. K. Ahn , H. Aihara , S. Al Said , D. M. Asner , T. Aushev
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R. Ayad V. Babu S. Bahinipati A. M. Bakich P. Behera C. Bele\~no J. Bennett M. Berger V. Bhardwaj T. Bilka J. Biswal A. Bobrov A. Bozek M. Bra\v{c}ko T. E. Browder M. Campajola L. Cao D. \v{C}ervenkov 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. Dole\v{z}al T. V. Dong S. Eidelman D. Epifanov J. E. Fast B. G. Fulsom V. Gaur N. Gabyshev A. Garmash A. Giri P. Goldenzweig B. Golob O. Grzymkowska O. Hartbrich K. Hayasaka H. Hayashii W.-S. Hou K. Huang T. Iijima K. Inami G. Inguglia A. Ishikawa R. Itoh M. Iwasaki Y. Iwasaki W. W. Jacobs Y. Jin D. Joffe K. K. Joo A. B. Kaliyar K. H. Kang G. Karyan Y. Kato T. Kawasaki H. Kichimi D. Y. Kim H. J. Kim K. T. Kim S. H. Kim K. Kinoshita P. Kody\v{s} S. Korpar D. Kotchetkov P. Kri\v{z}an R. Kroeger P. Krokovny R. Kumar A. Kuzmin Y.-J. Kwon J. S. Lange I. S. Lee J. K. Lee J. Y. Lee S. C. Lee L. K. Li Y. B. Li L. Li Gioi J. Libby K. Lieret D. Liventsev P.-C. Lu J. MacNaughton C. MacQueen M. Masuda T. Matsuda D. Matvienko J. T. McNeil M. Merola H. Miyata R. Mizuk T. Mori R. Mussa T. Nakano M. Nakao K. J. Nath M. Nayak M. Niiyama N. K. Nisar S. Nishida K. Nishimura K. Ogawa S. Ogawa H. Ono Y. Onuki W. Ostrowicz P. Pakhlov G. Pakhlova B. Pal T. Pang S. Pardi S.-H. Park S. Patra S. Paul T. K. Pedlar R. Pestotnik L. E. Piilonen V. Popov E. Prencipe M. Ritter A. Rostomyan G. Russo Y. Sakai M. Salehi S. Sandilya L. Santelj T. Sanuki V. Savinov O. Schneider G. Schnell J. Schueler C. Schwanda Y. Seino K. Senyo O. Seon M. E. Sevior V. Shebalin J.-G. Shiu A. Sokolov E. Solovieva M. Stari\v{c} J. F. Strube M. Sumihama T. Sumiyoshi W. Sutcliffe M. Takizawa U. Tamponi K. Tanida F. Tenchini M. Uchida T. Uglov Y. Unno S. Uno P. Urquijo Y. Usov S. E. Vahsen R. Van Tonder G. Varner A. Vinokurova A. Vossen B. Wang C. H. Wang M.-Z. Wang P. Wang E. Won S. B. Yang H. Ye J. Yelton J. H. Yin C. Z. Yuan Y. Yusa Z. P. Zhang V. Zhilich V. Zhukova
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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.

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  1. Signatures of the $\Omega(2012)^{-}$ state in $\Xi^*\bar K$ Correlation Functions

    hep-ph 2026-03 accept novelty 6.5

    Ω(2012) is dynamically generated as a Ξ*K–Ωη molecule; its pole produces pronounced near-threshold structures in the Ξ*0K− correlation function that can be measured at the LHC.