Year: 2007
Type: article
Abstract: We study semileptonic $B$ decay to the exclusive charmless states $\ensuremath{\pi}$, $\ensuremath{\rho}/\ensuremath{\omega}$, $\ensuremath{\eta}$, and ${\ensuremath{\eta}}^{\ensuremath{'}}$ using the $16\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ CLEO $\ensuremath{\Upsilon}(4S)$ data sample. We find $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}\ensuremath{\nu})=(1.37\ifmmode\pm\else\textpm\fi{}{0.15}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.11}_{\mathrm{sys}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and $\mathcal{B}({B}^{0}\ensuremath{\rightarrow}{\ensuremath{\rho}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}\ensuremath{\nu})=(2.93\ifmmode\pm\else\textpm\fi{}{0.37}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.37}_{\mathrm{sys}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$ and find evidence for ${B}^{+}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\ell}}^{+}\ensuremath{\nu}$, with $\mathcal{B}({B}^{+}\ensuremath{\rightarrow}{\ensuremath{\eta}}^{\ensuremath{'}}{\ensuremath{\ell}}^{+}\ensuremath{\nu})=(2.66\ifmmode\pm\else\textpm\fi{}{0.80}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.56}_{\mathrm{sys}})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}$. From our $B\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\ell}\ensuremath{\nu}$ rate for ${q}^{2}>16\text{ }\text{ }{\mathrm{GeV}}^{2}$ and lattice QCD, we find $|{V}_{ub}|=(3.6\ifmmode\pm\else\textpm\fi{}{0.4}_{\mathrm{stat}}\ifmmode\pm\else\textpm\fi{}{0.2}_{\mathrm{syst}\ensuremath{-}0.4\mathrm{thy}}^{+0.6})\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}3}$.
Source: Physical Review Letters
Authors: N. E. Adam, J. P. Alexander, K. Berkelman, D. G. Cassel, J. E. Duboscq, R. Ehrlich, L. Fields, L. Gibbons, R. Gray, S. W. Gray, D. L. Hartill, B. K. Heltsley, D. Hertz, C. 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, F. Yang, T. E. Coan, Y. S. Gao, M. Artuso, S. Blusk, J. Butt, J. Li, N. Menaa, R. Mountain, S. Nisar, K. Randrianarivony, R. Sia, T. Skwarnicki, S. Stone, J. C. Wang, K. Zhang, G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, D. M. Asner, K. W. Edwards, R. A. Briere, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, J. L. Rosner
Institutions: Cornell University, University of Florida, George Mason University, University of Illinois Urbana-Champaign, Indiana University Bloomington, Indiana University, University of Kansas, Luther College, University of Minnesota, Northwestern University, State University of New York, University at Albany, State University of New York, University at Buffalo, State University of New York, University of Oklahoma, University of Pittsburgh, University of Puerto Rico System, University of Puerto Rico-Mayaguez, Purdue University West Lafayette, Rensselaer Polytechnic Institute, University of Rochester, Southern Methodist University, Syracuse University, Wayne State University, Carleton University, Carnegie Mellon University, University of Chicago
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1970656169