Search forB→h(*)νν¯Decays at Belle

K F Chen ,T Lesiak,N Gabyshev,T Kawasaki,S Nishida,H Park,K S Park,A Kuzmin,E Won,S Uehara,H Ha,H Miyata,Y Hoshi,N Katayama,A Vinokurova,A Somov,T Sumiyoshi,Y Yamashita,Z P Zhang,H Ozaki,C H Wang,S Villa,U Bitenc,K Ueno,S Cole,M Dash,L E Piilonen,A Zupanc,S Ogawa,Y Usov,P Pakhlov,T Iijima,M Starič,R Itoh,K Kinoshita,G Pakhlova,T Ohshima,B G Cheon,K Ikado,C Schwanda,M Shapkin,R Seidl,B Shwartz,H Miyake,I Adachi,S Okuno,R Mizuk,Y Miyazaki,H Kichimi,P Chang,M Nakao,I Nakamura,D Liventsev,K Trabelsi,Y Teramoto,K Sumisawa,K Belous,A M Bakich,H Kawai,G N Taylor,K Inami,S Korpar,J H Kang,S Shinomiya,S Fratina,Y Watanabe,B Golob,S Uno,K Hayasaka,S L Olsen,Y Sakai,A Bay,A J Schwartz,M Danilov,M Yamauchi,T Hokuue,Y Choi,S Eidelman,T Hara,A Matyja,T Uglov,M E Sevior,C P Shen,D Heffernan,O Schneider,C C Zhang,F Mandl,A Drutskoy,T Aushev,I Tikhomirov,K Miyabayashi,P Krokovny,J Schümann,M Bračko,A Yamaguchi,K Vervink,R Pestotnik,A Chen,M Iwasaki,F Takasaki,K Senyo,H Shibuya,S Mconie,H J Hyun,N J Joshi,J Haba,T E Browder,A Ishikawa,Y Nagasaka ,A Bożek ,A Sokolov ,S Stanič ,Y J Kwon ,V Zhilich ,P Urquijo ,S Kajiwara ,W.-S Hou ,J B Singh ,S W Lin ,M Z Wang ,M Tanaka ,T Medvedeva ,N Tamura ,R Wedd ,A Bondar ,M C Chang ,O Tajima ,C C Wang ,Y J Kim ,Y Unno ,E L Barberio ,B Yabsley ,P Krïan ,Y Chào ,K E Varvell ,D Marlow ,S Bahinipati ,R Kumar ,H Aihara ,J G Shiu ,J Brodzicka ,J S Lee ,Y Hsiung ,C C Kuo ,H Ishino ,C C Chiang ,P Wang ,V Aulchenko ,M Hazumi ,S E Lee ,Y Liu ,G Varner ,I S Cho ,V Balagura

doi:10.1103/physrevlett.99.221802

Abstract

We present a search for the rare decays B -> h(*) nu nubar, where h(*) stands for a light meson. A data sample of 535 million BBbar pairs collected with the Belle detector at the KEKB e+e- collider is used. Signal candidates are required to have an accompanying B meson fully reconstructed in a hadronic mode and signal-side particles consistent with a single h(*) meson. No significant signal is observed and we set upper limits on the branching fractions at 90% confidence level. The limits on B0 -> K*0 nu nubar and B+ -> K+ nu nubar decays are more stringent than the previous constraints, while the first searches for B0 -> K0 nu nubar, pi0 nu nubar, rho0 nu nubar, phi nu nubar and B+ -> K*+ nu nubar, rho+ nu nubar are reported.

Full Text