Observation ofB+→K1(1270)+γ

Heyoung Yang,B G Cheon,F Fang,K Inami,R Mizuk,T Tsukamoto,K Ueno,A M Bakich,S Eidelman,R Chistov,S Okuno,F Takasaki,N Soni,H Kichimi,A Matyja,M Dash,S L Olsen,S Nishida,T Ohshima,T Kawasaki,T E Browder,H Kawai,M Nakao,Z P Zhang,S Uno,Y Teramoto,Y Iwasaki,K Sumisawa,N Katayama,Y Ban,T Lesiak,G Leder,M Starič,Y Yuan,H R Khan,J Dalseno,L E Piilonen,K Miyabayashi,N Parslow,H Shibuya,Y Sakai,G N Taylor,A Yamaguchi,W Ostrowicz,P Pakhlov,I Bedny,E Nakano,P Chang,J Haba,T Iijima,H Hayashii,K Hayasaka,D Zürcher,L Hinz,S Villa,A Chuvikov,A Chen,N Gabyshev,J S Lange,A Somov,S Cole,O Nitoh,S Korpar,M Watanabe,A Kuzmin,K Kinoshita,T Okabe,C Schwanda,T Schietinger,U Bitenc,C H Wang,S U Kataoka,Y Asano,Y Yamashita,M Bračko,B Golob,P Krokovny,T Matsumoto,H Miyata,T Hokuue,J H Kang,G Gokhroo,I Bizjak,A Garmash,O Schneider,J Schümann,T Nagamine,R Pestotnik,T Uglov,M Yamauchi,Y Hoshi,A J Schwartz,H Miyake,T Aushev,A Imoto,T Sumiyoshi,S Uehara,Z Natkaniec,S H Lee,D Žontar,X C Tian,S Ogawa,Y Choi,Y Ushiroda,J H Kim ,Y J Kwon ,M Z Wang ,S Stanič ,J Brodzicka ,M Tanaka ,C W Park ,H Sagawa ,S K Kim ,A Bondar ,M C Chang ,Y Hsiung ,G Varner ,K Abe ,H Pałka ,T Gershon ,S Bahinipati ,H J Kim ,S Blyth ,Y Enari ,R Stamen ,S M Kim ,S W Lin ,K E Varvell ,S K Choi ,V Zhilich ,W Mitaroff ,A Bożek ,N Tamura ,H Aihara ,Y Nagasaka ,C C Kuo ,T H Kim ,Y Chào ,R Seuster ,L M Zhang ,O Tajima ,G Majumder ,S Suzuki ,J S Kang ,M Różańska ,M Hazumi ,N Sato ,J Li ,W T Chen

doi:10.1103/physrevlett.94.111802

Observation ofB+→K1(1270)+γ

Heyoung Yang, B G Cheon + Show 147 more

Open Access

https://doi.org/10.1103/physrevlett.94.111802

Copy DOI

Journal: Physical Review Letters	Publication Date: Mar 24, 2005
Citations: 58

Affiliation: Seoul National University, Chonnam National University, Nagoya University, National Taiwan University, University of Sydney, Budker Institute of Nuclear Physics, Kanagawa University, Panjab University, Polish Academy of Sciences, Virginia Tech, Niigata University, Chiba University, University of Science and Technology of China, Osaka City University, Osaka University, Peking University, Austrian Academy of Sciences, Tokyo Institute of Technology, University of Melbourne, Nara Women's University, Toho University, Tohoku University, École Polytechnique Fédérale de Lausanne, Princeton University, National Central University, Goethe University Frankfurt, University of Cincinnati, Tokyo University of Agriculture and Technology, University of Maribor, National United University, University of Tsukuba, University of Ljubljana, Tokyo Metropolitan University, Korea University, Tata Institute of Fundamental Research, Tohoku Gakuin University, Sungkyunkwan University

#K0 Pi #Belle Detector + Show 8 more

Abstract
Full-Text PDF
Similar Papers

Abstract

We report the observation of the radiative decay B+ --> K1(1270)+ gamma using a data sample of 140 fb-1 taken at the Upsilon(4S) resonance with the Belle detector at the KEKB e+e- collider. We find the branching fraction to be Br(B+ --> K1(1270)+ gamma) = (4.3 +- 0.9(stat.) +- 0.9(syst.)) x 10-5 with a statistical significance of 7.3sigma. We find no significant signal for B+ --> K1(1400)+ gamma and set an upper limit Br(B+ --> K1(1400)+ gamma) < 1.5 x 10-5 at the 90% confidence level. We also measure inclusive branching fractions for B+ --> K+ pi+ pi- gamma and B0 --> K0 pi+ pi- gamma in the mass range 1 GeV/c^2 < M(K+(0)pi+pi-) < 2 GeV/c^2.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Similar Papers

Paper Title

Journal

Date

Author

View more papers

More From: Physical Review Letters

Paper Title

Journal

Date

Author

View more papers

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.