Study of exclusive charmless semileptonic B decays and extraction of |Vub| at CLEO

D. M. Asner, K. W. Edwards, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner, N. E. Adam, J. P. Alexander, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, L. Gibbons, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. HertzC. D. Jones, J. Kandaswamy, D. L. Kreinick, V. E. Kuznetsov, H. Mahlke-Krüger, T. O. Meyer, P. U.E. Onyisi, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, A. Ryd, A. J. Sadoff, H. Schwarthoff, X. Shi, S. Stroiney, W. M. Sun, T. Wilksen, M. Weinberger, S. B. Athar, R. Patel, V. Potlia, J. Yelton, P. Rubin, C. Cawlfield, B. I. Eisenstein, I. Karliner, D. Kim, N. Lowrey, P. Naik, M. Selen, E. J. White, J. Wiss, R. E. Mitchell, M. R. Shepherd, D. Besson, T. K. Pedlar, D. Cronin-Hennessy, K. Y. Gao, J. Hietala, Y. Kubota, T. Klein, B. W. Lang, R. Poling, A. W. Scott, A. Smith, P. Zweber, S. Dobbs, Z. Metreveli, K. K. Seth, A. Tomaradze, J. Ernst, K. M. Ecklund, H. Severini, W. Love, V. Savinov, O. Aquines, Z. Li, A. Lopez, S. Mehrabyan, H. Mendez, J. Ramirez, G. S. Huang, D. H. Miller, V. Pavlunin, B. Sanghi, I. P.J. Shipsey, B. Xin, G. S. Adams, M. Anderson, J. P. Cummings, I. Danko, D. Hu, B. Moziak, J. Napolitano, Q. He, J. Insler, H. Muramatsu, C. S. Park, E. H. Thorndike

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


We have studied semileptonic B decay to the exclusive charmless states π, ρ/ω, η and η′ using the full 15.5fb-1 CLEO Υ(4S) sample, with measurements performed in subregions of phase space to minimize dependence on a priori knowledge of the form factors involved. We find total branching fractions B(B0→π-+ν)=(1.37±0.15stat±0. 11sys)×10-4 and B(B0→ρ-+ν)=(2.93±0.37stat±0. 37sys)×10-4. We find evidence for B+→η′+ν, with B(B+→η′+ν)=(2.66±±0.80stat±0.56sys) ×10-4 and 1.20×10-4<B(B+→η′+ν)<4. 46×10-4 (90% CL). We also limit B(B+→η+ν)<1.01×10-4 (90% CL). By combining our B→πν information with unquenched lattice calculations, we find |Vub|=(3.6±0.4stat±0.2sys-0.4thy+0.6) ×10-3.

Original languageEnglish
Article number012007
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number1
Publication statusPublished - 31 Jul 2007
Externally publishedYes

Bibliographical note

Copyright 2007 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Study of exclusive charmless semileptonic B decays and extraction of |Vub| at CLEO'. Together they form a unique fingerprint.

Cite this