Evidence for NeutralBMeson Decays toωK*0

P Goldenzweig,Y Sakai,K Vervink,L S Peak,P Chang,F Mandl,O Schneider,O Nitoh,Y Usov,A Somov,A J Schwartz,M E Sevior,U Bitenc,K Miyabayashi,M Yamauchi,H Miyata,T Nagamine,R Seidl,T Kawasaki,A Chen,H Sahoo,T Ohshima,B G Cheon,S Nishida,L E Piilonen,E Won,H Nakazawa,M Iwasaki,J S Lange,P Krokovny,M Bračko,I Adachi,K Arinstein,D H Kah,Y Teramoto,M Dash,M Nakao,A Bay,T Uglov,W Ostrowicz,Y Watanabe,C P Shen,A Zupanc,G Pakhlova,P Pakhlov,S Okuno,I Bedny,D Heffernan,Y Miyazaki,J Macnaughton,M Starič,A Drutskoy,K Inami,K Senyo,T Aushev,S Eidelman,S L Olsen,T Iijima,R Pestotnik,S Korpar,A Kuzmin,C H Wang,C C Zhang,T Sumiyoshi,Y Hoshi,T E Browder,O Zyukova,J Wicht,A M Bakich,H Hayashii,V Bhardwaj,Y Yamashita,Z P Zhang,H J Hyun,K Sumisawa,P Križan,A Sekiya,A Ishikawa,J Dalseno,K Trabelsi,S Ogawa,J Schümann,B Golob,S Uehara,S Mconie,J H Kang,T Lesiak,H Ha,M J Lee,R Chistov,H Ozaki,C Schwanda,S Uno,H Kichimi,I Tikhomirov,E Nakano,H Park,K Hayasaka,K Kinoshita,M Shapkin,R Mizuk,Young-Il Choi ,Y J Kim,H K Park,H Aihara,C C Wang,V Shebalin,X L Wang,M Tanaka,A Bożek ,C C Chiang ,I S Cho ,Y Hsiung ,C W Park,G Varner,J G Shiu ,B Yabsley ,P Urquijo,H J Kim,C Liu,M Hazumi,S H Kyeong ,S Stanič,V Aulchenko,S W Lin ,R Wedd,Ramanuj Kumar ,H Ishino,W.-S Hou,S Suzuki,P Wang,T Živko ,J B Singh,K E Varvell,V Zhulanov,A Limosani,Y I Kim,J S Lee,Y Unno,S Bahinipati,N Tamura,H Pałka ,Y.-J Kwon,Y Liu,A Bondar,K F Chen ,S K Kim,M Z Wang ,J Li,Y Chào ,S E Lee

doi:10.1103/physrevlett.101.231801

Evidence for NeutralBMeson Decays toωK*0

P Goldenzweig, Y Sakai + Show 149 more

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https://doi.org/10.1103/physrevlett.101.231801

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Journal: Physical Review Letters	Publication Date: Dec 5, 2008
Citations: 9

Affiliation: University of Cincinnati, École Polytechnique Fédérale de Lausanne, University of Sydney, National Taiwan University, Austrian Academy of Sciences, Tokyo University of Agriculture and Technology, Budker Institute of Nuclear Physics, University of Melbourne, Nara Women's University, Niigata University, Tohoku University, University of Illinois Urbana-Champaign, National Central University, Nagoya University, Hanyang University, Virginia Tech, Korea University, University of Tokyo, University of Giessen, University of Maribor, Kyungpook National University, Osaka City University, Polish Academy of Sciences, Kanagawa University, Osaka University, Tokyo Metropolitan University, Tohoku Gakuin University, Panjab University, University of Science and Technology of China, University of Ljubljana, Saga University, Toho University, Yonsei University, Seoul National University

#Sigma Significance #Belle Detector + Show 8 more

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Abstract

We present the results of a study of the charmless vector-vector decay B0-->omegaK*0 with 657 x 10(6) BB pairs collected with the Belle detector at the KEKB e+e- collider. We measure the branching fraction to be B(B0-->omegaK*0) = [1.8+/-0.7(stat)+/-0.3(syst)]x 10(-6) with 3.0sigma significance. We also perform a helicity analysis of the omega and K*0 vector mesons, and obtain the longitudinal polarization fraction fL(B0-->omegaK*0) = 0.56+/-0.29(stat) -0.08(+0.18)(syst). Finally, we measure a large nonresonant branching fraction B[B0-->omegaK+pi(-);M Kpi in(0.755,1.250) GeV/c2] = [5.1+/-0.7(stat)+/-0.7(syst)]x 10(-6) with a significance of 9.5sigma.

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