Search for the decay B0K*0+- at the Belle experiment
T. V. Dong,T. Luo,I. Adachi,H. Aihara,D. M. Asner,H. Atmacan,V. Aulchenko,T. Aushev,R. Ayad,V. Babu,S. Bahinipati,P. Behera,K. Belous,F. Bernlochner,M. Bessner,B. Bhuyan,T. Bilka,J. Biswal,A. Bobrov,A. Bozek,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. -J. Cho,S. -K. Choi,Y. Choi,S. Choudhury,D. Cinabro,S. Cunliffe,T. Czank,S. Das,G. De Nardo,G. De Pietro,R. Dhamija,F. Di Capua,J. Dingfelder,Z. Dolezal,S. Dubey,D. Epifanov,T. Ferber,D. Ferlewicz,B. G. Fulsom,R. Garg,V. Gaur,N. Gabyshev,A. Garmash,A. Giri,P. Goldenzweig,E. Graziani,T. Gu,K. Gudkova,T. Hara,O. Hartbrich,K. Hayasaka,M. Hernandez Villanueva,W. -S. Hou,C. -L. Hsu,K. Inami,G. Inguglia,A. Ishikawa,R. Itoh,M. Iwasaki,W. W. Jacobs,E. -J. Jang,S. Jia,Y. Jin,K. K. Joo,J. Kahn,K. H. Kang,H. Kichimi,C. Kiesling,C. H. Kim,D. Y. Kim,S. H. Kim,Y. -K. Kim,T. D. Kimmel,P. Kodys,T. Konno,A. Korobov,S. Korpar,E. Kovalenko,P. Krizan,R. Kroeger,P. Krokovny,T. Kuhr,R. Kulasiri,M. Kumar,R. Kumar,K. Kumara,A. Kuzmin,Y. -J. Kwon,M. Laurenza,S. C. Lee,J. Li,L. K. Li,Y. B. Li,L. Li Gioi,J. Libby,K. Lieret,D. Liventsev,C. MacQueen,M. Masuda,T. Matsuda,D. Matvienko,M. Merola,F. Metzner,K. Miyabayashi,R. Mizuk,G. B. Mohanty,M. Nakao,A. Natochii,L. Nayak,M. Niiyama,N. K. Nisar,S. Nishida,K. Nishimura,S. Ogawa,H. Ono,Y. Onuki,P. Oskin,P. Pakhlov,G. Pakhlova,S. Pardi,H. Park,S. -H. Park,S. Patra,S. Paul,T. K. Pedlar,R. Pestotnik,L. E. Piilonen,T. Podobnik,V. Popov,E. Prencipe,M. T. Prim,A. Rostomyan,N. Rout,G. Russo,D. Sahoo,S. Sandilya,A. Sangal,L. Santelj,T. Sanuki,V. Savinov,G. Schnell,J. Schueler,C. Schwanda,Y. Seino,K. Senyo,M. E. Sevior,M. Shapkin,C. Sharma,J. -G. Shiu,F. Simon,E. Solovieva,M. Staric,M. Sumihama,K. Sumisawa,T. Sumiyoshi,M. Takizawa,U. Tamponi,K. Tanida,F. Tenchini,K. Trabelsi,M. Uchida,Y. Unno,S. Uno,R. Van Tonder,G. Varner,K. E. Varvell,E. Waheed,C. H. Wang,E. Wang,P. Wang,M. Watanabe,S. Watanuki,O. Werbycka,E. Won,B. D. Yabsley,W. Yan,S. B. Yang,H. Ye,J. H. Yin,Z. P. Zhang,V. Zhilich,V. Zhukova
PHYSICAL REVIEW D（2023）
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摘要
This paper presents a search for the rare flavor-changing neutral current process B-0 -> K*(0)tau(+)tau(-) using data taken with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. The analysis is based on the entire Gamma(4S) resonance data sample of 711 fb(-1), corresponding to 772 x 10(6) B (B) over bar pairs. In our search we fully reconstruct the companion B meson produced in the process e(+)e(-) -> Gamma(4S)-> B (B) over bar from its hadronic decay modes, and look for the decay B-0 -> K-*0 tau(+)tau(-) in the rest of the event. No evidence for a signal is found. We report an upper limit on the branching fraction B(B-0 -> K*(0)tau(+)tau(-) ) < 3.1 x 10(-3) at 90% confidence level. This is the first direct limit on B(B-0 -> K*(0)tau(+)tau(-) ).
