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Measurement of vertical bar V-ub vertical bar from Inclusive Charmless Semileptonic B Decays
- Authors
- Urquijo, P.; Barberio, E.; Adachi, I.; Aihara, H.; Arinstein, K.; Bakich, A. M.; Belous, K.; Bhardwaj, V.; Bischofberger, M.; Bozek, A.; Bracko, 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.; Krizan, 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.; Stanic, S.; Staric, 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.
- Issue Date
- Jan-2010
- Publisher
- American Physical Society
- Citation
- Physical Review Letters, v.104, no.2, pp 1 - 5
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Physical Review Letters
- Volume
- 104
- Number
- 2
- Start Page
- 1
- End Page
- 5
- ISSN
- 0031-9007
1079-7114
- Abstract
- We present the partial branching fraction for inclusive charmless semileptonic B decays and the corresponding value of the Cabibbo-Kobayashi-Maskawa matrix element vertical bar V-ub vertical bar, using a multivariate analysis method to access similar to 90% of the B -> X(u)l nu 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 X 10(6) B (B) over bar pairs collected with the Belle detector. We find that Delta B(B -> X(u)l nu; p(l)*(B) > 1.0 GeV/c) = 1.963X(1 +/- 0.088(stat) +/- 0.081(syst)) X 10(-3). Corresponding values of vertical bar V-ub vertical bar are extracted using several theoretical calculations.
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)