Moments of the electron energy spectrum and partial branching fraction of B→Xceν decays at the Belle detector
Urquijo, P.; Barberio, E.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Aulchenko, V.; Aushev, T.; Barbero, M.; Belous, K.; Bitenc, U.; Bizjak, I.; Blyth, S.; Bondar, A.; Bozek, A.; Bračko, M.; Brodzicka, J.; Browder, T.E.; Chang, P.; Chao, Y.; Chen, A.; Chen, K.-F.; Chen, W.T.; Cheon, B.G.; Chistov, R.; Choi, Y.; Choi, Y.K.; Chuvikov, A.; Cole, S.; Dalseno, J.; Danilov, M.; Dash, M.; Dragic, J.; Drutskoy, A.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Gershon, T.; Go, A.; Gokhroo, G.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Hara, T.; Hastings, N.C.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, S.; Hou, W.-S.; Iijima, T.; Imoto, A.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kang, J.H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Khan, H.R.; Kichimi, H.; Kim, S.K.; Kim, Y.J.; Kinoshita, K.; Korpar, S.; Križan, P.; Krokovny, P.; Kulasiri, R.; Kumar, R.; Kuo, C.C.; Kuzmin, A.; Kwon, Y.-J.; Lange, J.S.; Leder, G.; Lee, J.; Lee, M.J.; Lesiak, T.; Li, J.; Limosani, A.; Lin, S.-W.; Liventsev, D.; Majumder, G.; Matsumoto, T.; Matyja, A.; McOnie, S.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G.R.; Nagamine, T.; Nagasaka, Y.; Nakamura, I.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Park, H.; Park, K.S.; Pestotnik, R.; Piilonen, L.E.; Sakai, Y.; Satoyama, N.; Schietinger, T.; Schneider, O.; Schwanda, C.; Seidl, R.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shibuya, H.; Shwartz, B.; Singh, J.B.; Sokolov, A.; Somov, A.; Stanič, S.; Starič, M.; Stoeck, H.; Sumisawa, K.; Sumiyoshi, T.; Suzuki, S.Y.; Takasaki, F.; Tamai, K.; Tamura, N.; Tanaka, M.; Taylor, G.N.; Teramoto, Y.; Tian, X.C.; Trabelsi, K.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Varvell, K.E.; Villa, S.; Wang, C.C.; Wang, C.H.; Watanabe, Y.; Wedd, R.; Won, E.; Xie, Q.L.; Yabsley, B.D.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Yusa, Y.; Zhang, L.M.; Zhang, Z.P.; Zhilich, V.; Zupanc, A.
2007
Abstract
We report a measurement of the inclusive electron energy spectrum for charmed semileptonic decays of B mesons in a 140fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric energy e+e- collider. We determine the first four moments of the electron energy spectrum for threshold values of the electron energy between 0.4 and 2.0 GeV. In addition, we provide values of the partial branching fraction (zeroth moment) for the same electron threshold energies, and independent measurements of the B+ and B0 partial branching fractions at 0.4 GeV and 0.6 GeV electron threshold energies. We measure the independent B+ and B0 partial branching fractions with electron threshold energies of 0.4 GeV to be ΔB(B+→Xceν)=(10. 79±0.25(stat.)±0.27(sys.))% and ΔB(B0→Xceν)=(10. 08±0.30(stat.)±0.22(sys.))%. Full correlations between all measurements are evaluated. © 2007 The American Physical Society.
Details
Title
Moments of the electron energy spectrum and partial branching fraction of B→Xceν decays at the Belle detector
Author(s)
Urquijo, P. ; Barberio, E. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Anipko, D. ; Aulchenko, V. ; Aushev, T. ; Barbero, M. ; Belous, K. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bozek, A. ; Bračko, M. ; Brodzicka, J. ; Browder, T.E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, K.-F. ; Chen, W.T. ; Cheon, B.G. ; Chistov, R. ; Choi, Y. ; Choi, Y.K. ; Chuvikov, A. ; Cole, S. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dragic, J. ; Drutskoy, A. ; Eidelman, S. ; Fratina, S. ; Gabyshev, N. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Haba, J. ; Hara, T. ; Hastings, N.C. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Heffernan, D. ; Hoshi, Y. ; Hou, S. ; Hou, W.-S. ; Iijima, T. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Iwasaki, Y. ; Kang, J.H. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Khan, H.R. ; Kichimi, H. ; Kim, S.K. ; Kim, Y.J. ; Kinoshita, K. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kumar, R. ; Kuo, C.C. ; Kuzmin, A. ; Kwon, Y.-J. ; Lange, J.S. ; Leder, G. ; Lee, J. ; Lee, M.J. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Lin, S.-W. ; Liventsev, D. ; Majumder, G. ; Matsumoto, T. ; Matyja, A. ; McOnie, S. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Moloney, G.R. ; Nagamine, T. ; Nagasaka, Y. ; Nakamura, I. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Onuki, Y. ; Pakhlov, P. ; Pakhlova, G. ; Park, H. ; Park, K.S. ; Pestotnik, R. ; Piilonen, L.E. ; Sakai, Y. ; Satoyama, N. ; Schietinger, T. ; Schneider, O. ; Schwanda, C. ; Seidl, R. ; Senyo, K. ; Sevior, M.E. ; Shapkin, M. ; Shibuya, H. ; Shwartz, B. ; Singh, J.B. ; Sokolov, A. ; Somov, A. ; Stanič, S. ; Starič, M. ; Stoeck, H. ; Sumisawa, K. ; Sumiyoshi, T. ; Suzuki, S.Y. ; Takasaki, F. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Taylor, G.N. ; Teramoto, Y. ; Tian, X.C. ; Trabelsi, K. ; Tsukamoto, T. ; Uehara, S. ; Uglov, T. ; Ueno, K. ; Unno, Y. ; Uno, S. ; Usov, Y. ; Varner, G. ; Varvell, K.E. ; Villa, S. ; Wang, C.C. ; Wang, C.H. ; Watanabe, Y. ; Wedd, R. ; Won, E. ; Xie, Q.L. ; Yabsley, B.D. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Yusa, Y. ; Zhang, L.M. ; Zhang, Z.P. ; Zhilich, V. ; Zupanc, A.
Published in
Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume
75
Issue
3
Pages
032001
Date
2007
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Laboratories
LPHE
Record Appears in
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