Evidence for the singly Cabibbo-suppressed decay O-c(0) ? (sic)(-)p(+) and search for O-c(0) ? (sic)K--(+) and O-K+ decays at Belle
X. Han,S. Jia,L. Yuan,C. P. Shen,I. Adachi,J. K. Ahn,H. Aihara,D. M. Asner,T. Aushev,R. Ayad,V. Babu,S. Bahinipati,Sw. Banerjee,P. Behera,K. Belous,J. Bennett,M. Bessner,V. Bhardwaj,T. Bilka,D. Biswas,D. Bodrov,J. Borah,M. Bracko,P. Branchini,T. E. Browder,A. Budano,M. Campajola,D. Cervenkov,M. -C. Chang,P. Chang,A. Chen,B. G. Cheon,K. Chilikin,H. E. Cho,K. Cho,S. -K. Choi,Y. Choi,S. Choudhury,D. Cinabro,G. De Nardo,G. De Pietro,R. Dhamija,F. Di Capua,Z. Dolezal,T. V. Dong,D. Epifanov,T. Ferber,D. Ferlewicz,B. G. Fulsom,V. Gaur,A. Giri,P. Goldenzweig,E. Graziani,T. Gu,C. Hadjivasiliou,T. Hara,K. Hayasaka,H. Hayashii,W. -S. Hou,C. -L. Hsu,T. Iijima,K. Inami,N. Ipsita,A. Ishikawa,R. Itoh,M. Iwasaki,W. W. Jacobs,E. -J. Jang,Q. P. Ji,Y. Jin,A. B. Kaliyar,C. Kiesling,C. H. Kim,D. Y. Kim,Y. -K. Kim,K. Kinoshita,P. Kodys,T. Konno,A. Korobov,S. Korpar,E. Kovalenko,P. Krizan,P. Krokovny,T. Kuhr,M. Kumar,R. Kumar,K. Kumara,Y. -J. Kwon,T. Lam,M. Laurenza,S. C. Lee,C. H. Li,J. Li,L. K. Li,S. X. Li,Y. Li,Y. B. Li,L. Li Gioi,J. Libby,K. Lieret,M. Masuda,S. K. Maurya,M. Merola,K. Miyabayashi,R. Mizuk,G. B. Mohanty,R. Mussa,I. Nakamura,M. Nakao,H. Nakazawa,Z. Natkaniec,A. Natochii,N. K. Nisar,S. Nishida,S. Ogawa,H. Ono,Y. Onuki,G. Pakhlova,H. Park,J. Park,S. Patra,S. Paul,T. K. Pedlar,R. Pestotnik,L. E. Piilonen,E. Prencipe,M. T. Prim,N. Rout,G. Russo,S. Sandilya,L. Santelj,V. Savinov,G. Schnell,J. Schueler,C. Schwanda,Y. Seino,K. Senyo,M. E. Sevior,W. Shan,M. Shapkin,C. Sharma,J. -G. Shiu,B. Shwartz,E. Solovieva,M. Staric,M. Sumihama,T. Sumiyoshi,M. Takizawa,K. Tanida,F. Tenchini,K. Trabelsi,M. Uchida,T. Uglov,Y. Unno,K. Uno,S. Uno,P. Urquijo,S. E. Vahsen,R. van Tonder,G. Varner,A. Vinokurova,X. L. Wang,E. Won,B. D. Yabsley,W. Yan,S. B. Yang,J. Yelton,J. H. Yin,C. Z. Yuan,Z. P. Zhang,V. Zhilich,V. Zhukova
JOURNAL OF HIGH ENERGY PHYSICS（2023）
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摘要
Using a data sample of 980 fb(-1) collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider, we study for the first time the singly Cabibbo-suppressed decays omega(0)(c) -(sic) -pi(+) and omega K--(+) and the doubly Cabibbo-suppressed decay omega(0)(c) -(sic)K--(+). Evidence for an Q0 c signal in the omega(0)(c) -E-pi+ mode is reported with a significance of 4.5 sigma including systematic uncertainties. The ratio of branching fractions to the normalization mode omega(0)(c) -omega(-)pi(+ )is measured to beB(omega(0)(c) -(sic)(-)pi(+))/B(omega(0)(c) -Q-pi+) = 0.253 +/- 0.052(stat.) +/- 0.030(syst.).No significant signals of omega(0)(c) -(sic)K--(+) and omega K--(+) modes are found. The upper limits at 90% confidence level on ratios of branching fractions are determined to beB(omega(0)(c) -> (sic)K--(+))/B(omega(0)(c) -> omega-pi(+)) < 0.070 andB(omega(0)(c) -> omega K--(+))/B(omega(0)(c) -> omega-pi(+)) < 0.29.
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关键词
Branching fraction,Charm Physics,e(+)-e(-) Experiments,Particle and Resonance Production
