Search for B→πℓ+ℓ- decays at Belle
Wei, J.-T.; Chen, K.-F.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Aushev, T.; Bakich, A.M.; Balagura, V.; Belous, K.; Bitenc, U.; Bondar, A.; Bozek, A.; Bračko, M.; Browder, T.E.; Chang, P.; Chao, Y.; Chen, A.; Chen, W.T.; Cheon, B.G.; Chistov, R.; Cho, I.-S.; Choi, Y.; Dalseno, J.; Eidelman, S.; Golob, B.; Hayashii, H.; Heffernan, D.; Hoshi, Y.; Hou, W.-S.; Hyun, H.J.; Iijima, T.; Inami, K.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kah, D.H.; Kang, J.H.; Kapusta, P.; Kawasaki, T.; Kichimi, H.; Kim, H.O.; Kim, J.H.; Kim, S.K.; Kim, Y.I.; Kim, Y.J.; Kinoshita, K.; Korpar, S.; Krokovny, P.; Kumar, R.; Kwon, Y.-J.; Kyeong, S.-H.; Lee, J.S.; Lesiak, T.; Limosani, A.; Lin, S.-W.; Liventsev, D.; Mandl, F.; Matyja, A.; McOnie, S.; Medvedeva, T.; Miyata, H.; Miyazaki, Y.; Moloney, G.R.; Nakao, M.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, C.W.; Park, H.K.; Pestotnik, R.; Peters, M.; Piilonen, L.E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Senyo, K.; Shapkin, M.; Shiu, J.-G.; Singh, J.B.; Somov, A.; Stanič, S.; Starič, M.; Sumisawa, K.; Sumiyoshi, T.; Takasaki, F.; Tanaka, M.; Taylor, G.N.; Teramoto, Y.; Tikhomirov, I.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Wang, C.C.; Wang, C.H.; Wang, M.-Z.; Wang, P.; Watanabe, Y.; Wicht, J.; Won, E.; Yamashita, Y.; Zhang, Z.P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
2008
Abstract
We present a search for the decays B+→π+ℓ+ℓ- and B0→π0ℓ+ℓ-, where ℓ+ℓ- is either a μ+μ- or e+e- pair, with a data sample of 657×106 BB̄ pairs collected with the Belle detector at the KEKB e+e- collider. Signal events are reconstructed from a charged or a neutral pion candidate and a pair of oppositely charged electrons or muons. No significant signal is observed and we set an upper limit on the isospin-averaged branching fraction B(B→πℓ+ℓ-)<6.2×10-8 at the 90% confidence level. © 2008 The American Physical Society.
Details
Title
Search for B→πℓ+ℓ- decays at Belle
Author(s)
Wei, J.-T. ; Chen, K.-F. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Aulchenko, V. ; Aushev, T. ; Bakich, A.M. ; Balagura, V. ; Belous, K. ; Bitenc, U. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Browder, T.E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, W.T. ; Cheon, B.G. ; Chistov, R. ; Cho, I.-S. ; Choi, Y. ; Dalseno, J. ; Eidelman, S. ; Golob, B. ; Hayashii, H. ; Heffernan, D. ; Hoshi, Y. ; Hou, W.-S. ; Hyun, H.J. ; Iijima, T. ; Inami, K. ; Ishino, H. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kah, D.H. ; Kang, J.H. ; Kapusta, P. ; Kawasaki, T. ; Kichimi, H. ; Kim, H.O. ; Kim, J.H. ; Kim, S.K. ; Kim, Y.I. ; Kim, Y.J. ; Kinoshita, K. ; Korpar, S. ; Krokovny, P. ; Kumar, R. ; Kwon, Y.-J. ; Kyeong, S.-H. ; Lee, J.S. ; Lesiak, T. ; Limosani, A. ; Lin, S.-W. ; Liventsev, D. ; Mandl, F. ; Matyja, A. ; McOnie, S. ; Medvedeva, T. ; Miyata, H. ; Miyazaki, Y. ; Moloney, G.R. ; Nakao, M. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ozaki, H. ; Pakhlov, P. ; Pakhlova, G. ; Park, C.W. ; Park, H.K. ; Pestotnik, R. ; Peters, M. ; Piilonen, L.E. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schwanda, C. ; Senyo, K. ; Shapkin, M. ; Shiu, J.-G. ; Singh, J.B. ; Somov, A. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Sumiyoshi, T. ; Takasaki, F. ; Tanaka, M. ; Taylor, G.N. ; Teramoto, Y. ; Tikhomirov, I. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Usov, Y. ; Varner, G. ; Wang, C.C. ; Wang, C.H. ; Wang, M.-Z. ; Wang, P. ; Watanabe, Y. ; Wicht, J. ; Won, E. ; Yamashita, Y. ; Zhang, Z.P. ; Zhilich, V. ; Zhulanov, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O.
Published in
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume
78
Issue
1
Pages
011101
Date
2008
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Laboratories
LPHE
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Scientific production and competences > SB - School of Basic Sciences > IPHYS - Institute of Physics > LPHE - High Energy Physics Laboratory
Peer-reviewed publications
Work produced at EPFL
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Peer-reviewed publications
Work produced at EPFL
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Record creation date
2010-11-05