Measurement of |Vub| from inclusive charmless semileptonic B decays
Urquijo, P.; Barberio, E.; Adachi, I.; Aihara, H.; Arinstein, K.; Bakich, A.M.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bozek, A.; Bračko, M.; Browder, T.E.; Chao, Y.; Chen, A.; Cheon, B.G.; Chistov, R.; Cho, I.-S.; Choi, Y.; Dalseno, J.; Das, A.; Dash, M.; Dungel, W.; Eidelman, S.; Gabyshev, N.; Goldenzweig, P.; Golob, B.; Ha, H.; Haba, J.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W.-S.; Hsiung, Y.B.; Hyun, H.J.; Iijima, T.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Kah, D.H.; Kang, J.H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kim, H.O.; Kim, J.H.; Kim, S.K.; Kim, Y.I.; Kim, Y.J.; Kinoshita, K.; Ko, B.R.; Kreps, M.; Križan, P.; Krokovny, P.; Kuhr, T.; Kuzmin, A.; Kwon, Y.-J.; Kyeong, S.-H.; Lee, M.J.; Lee, S.E.; Lee, S.-H.; Lesiak, T.; Li, J.; Limosani, A.; Liu, C.; Liventsev, D.; Louvot, R.; Mandl, F.; Matyja, A.; McOnie, S.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mori, T.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Natkaniec, Z.; Nishida, S.; Nishimura, K.; Nitoh, O.; Nozaki, T.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ostrowicz, W.; Ozaki, H.; Pakhlova, G.; Park, C.W.; Park, H.K.; Park, K.S.; Pestotnik, R.; Piilonen, L.E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Seidl, R.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shiu, J.-G.; Shwartz, B.; Singh, J.B.; Stanič, S.; Starič, M.; Sumisawa, K.; Taylor, G.N.; Teramoto, Y.; Trabelsi, K.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Varner, G.; Varvell, K.E.; Vervink, K.; Wang, C.H.; Wang, M.-Z.; Wang, P.; Watanabe, Y.; Wedd, R.; Won, E.; Yabsley, B.D.; Yamashita, Y.; Zhang, Z.P.; Zhilich, V.; Zhulanov, V.; Zivko, T.; Zupanc, A.; Zyukova, O.
2010
Abstract
We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the Cabibbo-Kobayashi- Maskawa matrix element |Vub|, using a multivariate analysis method to access ∼90% of the B→Xu ν phase space. This approach dramatically reduces the theoretical uncertainties from the b-quark mass and nonperturbative QCD compared to all previous inclusive measurements. The results are based on a sample of 657×106 BB̄ pairs collected with the Belle detector. We find that ΔB(B→Xu ν;p *B>1.0GeV/c)=1. 963×(1±0.088stat±0.081syst)×10-3. Corresponding values of |Vub| are extracted using several theoretical calculations. © 2010 The American Physical Society.
Details
Title
Measurement of |Vub| from inclusive charmless semileptonic B decays
Author(s)
Urquijo, P. ; Barberio, E. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Bakich, A.M. ; Belous, K. ; Bhardwaj, V. ; Bischofberger, M. ; Bozek, A. ; Bračko, M. ; Browder, T.E. ; Chao, Y. ; Chen, A. ; Cheon, B.G. ; Chistov, R. ; Cho, I.-S. ; Choi, Y. ; Dalseno, J. ; Das, A. ; Dash, M. ; Dungel, W. ; Eidelman, S. ; Gabyshev, N. ; Goldenzweig, P. ; Golob, B. ; Ha, H. ; Haba, J. ; Hayashii, H. ; Horii, Y. ; Hoshi, Y. ; Hou, W.-S. ; Hsiung, Y.B. ; Hyun, H.J. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, M. ; Kah, D.H. ; Kang, J.H. ; Katayama, N. ; Kawai, H. ; Kawasaki, T. ; Kim, H.O. ; Kim, J.H. ; Kim, S.K. ; Kim, Y.I. ; Kim, Y.J. ; Kinoshita, K. ; Ko, B.R. ; Kreps, M. ; Križan, P. ; Krokovny, P. ; Kuhr, T. ; Kuzmin, A. ; Kwon, Y.-J. ; Kyeong, S.-H. ; Lee, M.J. ; Lee, S.E. ; Lee, S.-H. ; Lesiak, T. ; Li, J. ; Limosani, A. ; Liu, C. ; Liventsev, D. ; Louvot, R. ; Mandl, F. ; Matyja, A. ; McOnie, S. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Mori, T. ; Nagasaka, Y. ; Nakano, E. ; Nakao, M. ; Natkaniec, Z. ; Nishida, S. ; Nishimura, K. ; Nitoh, O. ; Nozaki, T. ; Ogawa, S. ; Ohshima, T. ; Okuno, S. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlova, G. ; Park, C.W. ; Park, H.K. ; Park, K.S. ; Pestotnik, R. ; Piilonen, L.E. ; Sahoo, H. ; Sakai, Y. ; Schneider, O. ; Schwanda, C. ; Seidl, R. ; Senyo, K. ; Sevior, M.E. ; Shapkin, M. ; Shiu, J.-G. ; Shwartz, B. ; Singh, J.B. ; Stanič, S. ; Starič, M. ; Sumisawa, K. ; Taylor, G.N. ; Teramoto, Y. ; Trabelsi, K. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Varner, G. ; Varvell, K.E. ; Vervink, K. ; Wang, C.H. ; Wang, M.-Z. ; Wang, P. ; Watanabe, Y. ; Wedd, R. ; Won, E. ; Yabsley, B.D. ; Yamashita, Y. ; Zhang, Z.P. ; Zhilich, V. ; Zhulanov, V. ; Zivko, T. ; Zupanc, A. ; Zyukova, O.
Published in
Physical Review Letters
Volume
104
Issue
2
Pages
021801
Date
2010
Keywords
Other identifier(s)
View record in Scopus
View record in Web of Science
View record in Web of Science
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
Journal Articles
Published
Peer-reviewed publications
Work produced at EPFL
Journal Articles
Published
Record creation date
2010-11-05