Search for the decayB0→ϕγ

Z King,A Rostomyan,S Eidelman,Y Teramoto,V Chobanova,J Libby,N Gabyshev,T Julius,T Aushev,J Stypula,Z Doležal,Y Choi,B Golob,T Kawasaki,A Garmash,J Yamaoka,K Inami,K Miyabayashi,T Kumita,K Kinoshita,R Mizuk,T Sanuki,M Nakao,Y Seino,C Kiesling,Y Yook,T Hara,T Kuhr,T Uglov,S Yashchenko,K Hayasaka,G Schnell,Y Watanabe,Y Sakai,D Cinabro,J Haba,D Červenkov,A Ishikawa,B Shwartz,J Dalseno,S Wehle,E Won,I Adachi,K Trabelsi,L Li Gioi,R Pestotnik,N Dash,A Zupanc,V Chekelian,C Pulvermacher,M Masuda,E Kato,M Starič,G Inguglia,P Vanhoefer,D Kotchetkov,T Iijima,W Ostrowicz,V Vorobyev,A Bobrov,R Ayad,R Gillard,M Uchida,Y Usov,S Al Said,R Itoh,S Ogawa,H Atmacan,M Watanabe,V Savinov,T Matsuda,C Schwanda,H Sahoo,V Gaur,L Pesántez,T Ferber,V Bhardwaj,D Matvienko,H Hayashii,O Schneider,P Križan,H Farhat,H Nakazawa,S Sandilya,R Chistov,A Moll,Y Li,P Goldenzweig,B Bhuyan,M Sumihama,S Korpar,K Senyo,Y Iwasaki,E Solovieva,S Uno,P Krokovny,K Chilikin,T Schlüter,S Okuno,H Miyata,S Nishida,R Glattauer,V Shebalin,K.t Kim ,C.-L Hsu,S.h Kim ,B G Fulsom ,N Taniguchi,M.-Z Wang,K E Varvell ,J.b Kim ,C.w Park ,H Li,C.h Li ,A J Schwartz ,M Takizawa,K Negishi,W W Jacobs ,Z.p Zhang ,K Cho,M Ritter,K H Kang ,C.h Wang ,J Rauch,T Nanut,F Simon,B G Cheon ,P Urquijo,D M Asner ,P Kodyš,T A Shibata ,D.y Kim ,S Paul,C Z Yuan ,Y Sato,M E Sevior ,Y M Goh ,H B Jeon ,C P Shen ,L Šantelj ,G Varner,B Pal,H.j Kim ,I.s Lee ,S Ryu,T K Pedlar ,L Li,J Strube ,P K Behera ,K K Joo ,P Wang,W.-S Hou,Jyoti Prakash Biswal ,D Dutta,K M Williams ,T Horiguchi,V Zhilich,H Aihara,K J Nath ,T E Browder ,S Stanič,A Bożek ,A M Bakich ,L E Piilonen ,M Petrič,Y Unno,G B Mohanty ,Y.j Kim ,J G Shiu ,T Luo

doi:10.1103/physrevd.93.111101

Abstract

We have searched for the decay B0 -> phi gamma using the full Belle data set of 772 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. No signal is observed, and we set an upper limit on the branching fraction of B(B0 -> phi gamma) < 1.0 x 10^{-7} at 90% confidence level. This is the most stringent limit on this decay mode to date.

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