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Determination of |Vub| from measurements of the inclusive charmless semileptonic partial rates of B mesons using full reconstruction tags

  • I. Bizjak
  • , K. Abe
  • , K. Abe
  • , H. Aihara
  • , Y. Asano
  • , S. Bahinipati
  • , A. M. Bakich
  • , Y. Ban
  • , E. Barberio
  • , M. Barbero
  • , A. Bay
  • , U. Bitenc
  • , S. Blyth
  • , A. Bondar
  • , A. Bozek
  • , M. Bračko
  • , J. Brodzicka
  • , T. E. Browder
  • , Y. Chao
  • , A. Chen
  • W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, T. Hara, H. Hayashii, M. Hazumi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, C. C. Kuo, A. Kuzmin, Y. J. Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, T. Nagamine, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, P. Pakhlov, H. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, M. Rozanska, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, P. Schönmeier, C. Schwanda, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, Y. Watanabe, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Heyoung Yang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar
  • Jožef Stefan Institute
  • High Energy Accelerator Research Organization, Tsukuba
  • Tohoku Gakuin University
  • The University of Tokyo
  • University of Tsukuba
  • University of Cincinnati
  • The University of Sydney
  • Peking University
  • University of Melbourne
  • University of Hawai'i at Mānoa
  • Swiss Federal Institute of Technology Lausanne
  • National Taiwan University
  • RAS - Budker Institute of Nuclear Physics
  • H. Niewodniczanski Institute of Nuclear Physics
  • University of Maribor
  • National Central University
  • Chonnam National University
  • Alikhanov Institute for Theoretical and Experimental Physics
  • Gyeongsang National University
  • Sungkyunkwan University
  • Princeton University
  • Virginia Polytechnic Institute and State University
  • CAS - Institute of High Energy Physics
  • Nagoya University
  • Tata Institute of Fundamental Research
  • University of Ljubljana
  • The University of Osaka
  • Nara Women's University
  • Yonsei University
  • Korea University
  • Chiba University
  • Niigata University
  • Tokyo Institute of Technology
  • Panjab University
  • Austrian Academy of Sciences
  • Seoul National University
  • University of Science and Technology of China
  • Tokyo Metropolitan University
  • Tohoku University
  • Hiroshima Institute of Technology
  • Osaka Metropolitan University
  • Tokyo University of Agriculture and Technology
  • Toho University
  • Kanagawa University
  • Kyungpook National University
  • University of Nova Gorica
  • Saga University
  • National United University Taiwan
  • Nippon Dental University

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

We present a measurement of the Cabibbo-Kobayashi-Maskawa matrix element data collected by the Belle detector at the KEKB e+e-asymmetric collider. Events are tagged by fully reconstructing one of the B mesons, produced in pairs from Υ(4S). The signal for b→u semileptonic decay is distinguished from the b→c background using the hadronic mass MX, the leptonic invariant mass squared q2 and the variable P+≡EX-|p→X|. The results are obtained for events with pℓ*≥1GeV/c, in three kinematic regions (1)MX<1.7GeV/c2, (2)MX<1.7GeV/c2 combined with q2>8GeV2/c2, and by (3)P+<0.66GeV/c. The matrix element |Vub| is found to be (4.09±0. 19±0.20-0.15+0.14±0.18)×10-3, where the errors are statistical, systematic including Monte Carlo modeling, theoretical, and from shape function parameter determination, respectively.

Original languageEnglish
Article number241801
JournalPhysical Review Letters
Volume95
Issue number24
DOIs
StatePublished - 9 Dec 2005

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