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Search for B-O -> P(Lambda)Over-Bar Pi(-)Gamma at Belle

Y-T Lai,M. -Z. Wang,I. Adachi,H. Aihara,D. M. Asner,V. Aulchenko,T. Aushev,A. M. Bakich,A. Bala,B. Bhuyan,A. Bobrov,A. Bozek,M. Bracko,T. E. Browder,P. Chang,V. Chekelian,A. Chen,P. Chen,B. G. Cheon,I. -S. Cho,K. Cho,V. Chobanova,S. -K. Choi,Y. Choi,D. Cinabro,J. Dalseno,Z. Dolezal,A. Drutskoy,S. Eidelman,H. Farhat,J. E. Fast,T. Ferber,A. Frey,V. Gaur,S. Ganguly,R. Gillard,Y. M. Goh,B. Golob,J. Haba,H. Hayashii,Y. Hoshi,W. -S. Hou,Y. B. Hsiung,T. Iijima,A. Ishikawa,R. Itoh,Y. Iwasaki,T. Iwashita,I. Jaegle,T. Julius,J. H. Kang,E. Kato,T. Kawasaki, C. Kiesling,H. O. Kim,J. H. Kim,M. J. Kim,Y. J. Kim,J. Klucar,B. R. Ko,P. Kodys, S. Korpar,P. Krizan,P. Krokovny,T. Kuhr,T. Kumita,Y. -J. Kwon,J. S. Lange,S. -H. Lee,J. Li,J. Libby,Y. Liu,P. Lukin,D. Matvienko,H. Miyata,R. Mizuk,A. Moll,R. Mussa,E. Nakano,M. Nakao,H. Nakazawa,M. Nayak,C. Ng,N. K. Nisar,S. Nishida,O. Nitoh,S. Ogawa,Y. Onuki,H. Ozaki,G. Pakhlova,C. W. Park,H. Park, T. K. Pedlar, R. Pestotnik,M. Petric,L. E. Piilonen,M. Ritter,M. Roehrken,A. Rostomyan,S. Ryu,H. Sahoo,T. Saito,Y. Sakai,S. Sandilya,D. Santel,L. Santelj,T. Sanuki,Y. Sato,O. Schneider,G. Schnell,C. Schwanda,D. Semmler,K. Senyo,M. Shapkin,C. P. Shen,T. -A. Shibata,J. -G. Shiu,B. Shwartz,A. Sibidanov,Y. -S. Sohn,E. Solovieva,S. Stanic,M. Staric,M. Steder,T. Sumiyoshi,U. Tamponi, K. Tanida,Y. Teramoto,M. Uchida,S. Uehara,T. Uglov,Y. Unno,S. Uno,P. Urquijo,S. E. Vahsen,C. Van Hulse,P. Vanhoefer,G. Varner,A. Vossen,M. N. Wagner,C. H. Wang,P. Wang,Y. Watanabe,K. M. Williams,E. Won,J. Yamaoka,Y. Yamashita,S. Yashchenko, Z. P. Zhang,V. Zhilich,V. Zhulanov,A. Zupanc

DESY (CERN, DESY, Fermilab, IHEP, and SLAC)(2014)

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摘要
We search for the charmless B-o decay with final state particles p (Lambda) over bar pi(-)gamma using the full data sample that contains 772 x 10(6)B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. This decay is predicted to proceed predominantly via the b -> s gamma radiative penguin process with a high energy photon. No significant signal is found. We set an upper limit of 6.5 x 10(-7) for the branching fraction of B-o -> p (Lambda) over bar pi(-)gamma at the 90% confidence level.
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