First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions

J. P. Alexander, C. Bebek, B. E. Berger, K. Berkelman, K. Bloom, D. G. Cassel, H. A. Cho, D. M. Coffman, D. S. Crowcroft, M. Dickson, P. S. Drell, D. J. Dumas, R. Ehrlich, R. Elia, P. Gaidarev, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, C. D. Jones & 192 others S. L. Jones, J. Kandaswamy, N. Katayama, P. C. Kim, D. L. Kreinick, T. Lee, Y. Liu, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, A. Soffer, C. Ward, P. Avery, C. Prescott, S. Yang, J. Yelton, G. Brandenburg, R. A. Briere, T. Liu, M. Saulnier, R. Wilson, H. Yamamoto, T. E. Browder, F. Li, J. L. Rodriguez, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, I. Karliner, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, M. Ogg, A. Bellerive, D. I. Britton, R. Janicek, D. B. MacFarlane, K. W. McLean, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, N. Copty, R. Davis, N. Hancock, S. Kotov, I. Kravchenko, N. Kwak, S. Anderson, Y. Kubota, M. Lattery, J. J. O'Neill, S. Patton, R. Poling, T. Riehle, V. Savinov, A. Smith, M. S. Alam, S. B. Athar, I. J. Kim, Z. Ling, A. H. Mahmood, H. Severini, S. Timm, F. Wappler, J. E. Duboscq, D. Fujino, R. Fulton, K. K. Gan, K. Honscheid, H. Kagan, R. Kass, J. Lee, M. Sung, A. Undrus, R. Wanke, C. White, A. Wolf, M. M. Zoeller, B. Nemati, S. J. Richichi, W. R. Ross, P. Skubic, M. Wood, M. Bishai, J. Fast, E. Gerndt, J. W. Hinson, D. H. Miller, E. I. Shibata, I. P J Shipsey, M. Yurko, M. Battle, L. Gibbons, S. D. Johnson, Y. Kwon, S. Roberts, K. Sparks, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, S. F. Schaffner, R. Wang, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, A. Efimov, M. Gao, M. Goldberg, R. Greene, D. He, S. Kopp, G. C. Moneti, R. Mountain, Y. Mukhin, T. Skwarnicki, S. Stone, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, S. Marka, A. Freyberger, D. Gibaut, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, B. Barish, M. Chadha, S. Chan, G. Eigen, J. S. Miller, C. O'Grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, D. M. Asner, M. Athanas, Daniel Bliss, W. S. Brower, G. Masek, H. P. Paar, J. Gronberg, C. M. Korte, R. Kutschke, D. J. Lange, S. Menary, R. J. Morrison, S. Nakanishi, H. N. Nelson, T. K. Nelson, C. Qiao, J. D. Richman, D. Roberts, A. Ryd, H. Tajima, M. S. Witherell, R. Balest, B. H. Behrens, K. Cho, W. T. Ford, M. Lohner, H. Park, P. Rankin, J. Roy, J. G. Smith

Research output: Contribution to journalArticle

146 Citations (Scopus)

Abstract

CLEO has studied B decays to πℓν, ρℓν, and ωℓν, where ℓ = e or μ, by incorporating the missing momentum into full B reconstruction. With the B0 and B+ modes combined according to isospin predictions for the relative partial widths, we obtain B(B0 → π-+ν) = (1.8 ± 0.4 ± 0.3 ± 0.2) × 10-4 and 3(B0 → ρ-+ν) = (2.5 ± 0.4-0.7 +0.5 ± 0.5) × 10-4, where the errors are statistical, systematic, and the estimated model dependence. We also estimate |Vub| = (3.3 ± 0.2-0.4 +0.3 ± 0.7) × 10-3.

Original languageEnglish (US)
Pages (from-to)5000-5004
Number of pages5
JournalPhysical Review Letters
Volume77
Issue number25
StatePublished - 1996
Externally publishedYes

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momentum
decay
estimates
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Alexander, J. P., Bebek, C., Berger, B. E., Berkelman, K., Bloom, K., Cassel, D. G., ... Smith, J. G. (1996). First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions. Physical Review Letters, 77(25), 5000-5004.

First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions. / Alexander, J. P.; Bebek, C.; Berger, B. E.; Berkelman, K.; Bloom, K.; Cassel, D. G.; Cho, H. A.; Coffman, D. M.; Crowcroft, D. S.; Dickson, M.; Drell, P. S.; Dumas, D. J.; Ehrlich, R.; Elia, R.; Gaidarev, P.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Jones, C. D.; Jones, S. L.; Kandaswamy, J.; Katayama, N.; Kim, P. C.; Kreinick, D. L.; Lee, T.; Liu, Y.; Ludwig, G. S.; Masui, J.; Mevissen, J.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Patterson, J. R.; Peterson, D.; Riley, D.; Soffer, A.; Ward, C.; Avery, P.; Prescott, C.; Yang, S.; Yelton, J.; Brandenburg, G.; Briere, R. A.; Liu, T.; Saulnier, M.; Wilson, R.; Yamamoto, H.; Browder, T. E.; Li, F.; Rodriguez, J. L.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Karliner, I.; Palmer, M.; Selen, M.; Thaler, J. J.; Edwards, K. W.; Ogg, M.; Bellerive, A.; Britton, D. I.; Janicek, R.; MacFarlane, D. B.; McLean, K. W.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Baringer, P.; Bean, A.; Besson, D.; Coppage, D.; Copty, N.; Davis, R.; Hancock, N.; Kotov, S.; Kravchenko, I.; Kwak, N.; Anderson, S.; Kubota, Y.; Lattery, M.; O'Neill, J. J.; Patton, S.; Poling, R.; Riehle, T.; Savinov, V.; Smith, A.; Alam, M. S.; Athar, S. B.; Kim, I. J.; Ling, Z.; Mahmood, A. H.; Severini, H.; Timm, S.; Wappler, F.; Duboscq, J. E.; Fujino, D.; Fulton, R.; Gan, K. K.; Honscheid, K.; Kagan, H.; Kass, R.; Lee, J.; Sung, M.; Undrus, A.; Wanke, R.; White, C.; Wolf, A.; Zoeller, M. M.; Nemati, B.; Richichi, S. J.; Ross, W. R.; Skubic, P.; Wood, M.; Bishai, M.; Fast, J.; Gerndt, E.; Hinson, J. W.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P J; Yurko, M.; Battle, M.; Gibbons, L.; Johnson, S. D.; Kwon, Y.; Roberts, S.; Sparks, K.; Thorndike, E. H.; Jessop, C. P.; Lingel, K.; Marsiske, H.; Perl, M. L.; Schaffner, S. F.; Wang, R.; Coan, T. E.; Fadeyev, V.; Korolkov, I.; Maravin, Y.; Narsky, I.; Shelkov, V.; Staeck, J.; Stroynowski, R.; Volobouev, I.; Ye, J.; Artuso, M.; Efimov, A.; Gao, M.; Goldberg, M.; Greene, R.; He, D.; Kopp, S.; Moneti, G. C.; Mountain, R.; Mukhin, Y.; Skwarnicki, T.; Stone, S.; Xing, X.; Bartelt, J.; Csorna, S. E.; Jain, V.; Marka, S.; Freyberger, A.; Gibaut, D.; Kinoshita, K.; Lai, I. C.; Pomianowski, P.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Barish, B.; Chadha, M.; Chan, S.; Eigen, G.; Miller, J. S.; O'Grady, C.; Schmidtler, M.; Urheim, J.; Weinstein, A. J.; Würthwein, F.; Asner, D. M.; Athanas, M.; Bliss, Daniel; Brower, W. S.; Masek, G.; Paar, H. P.; Gronberg, J.; Korte, C. M.; Kutschke, R.; Lange, D. J.; Menary, S.; Morrison, R. J.; Nakanishi, S.; Nelson, H. N.; Nelson, T. K.; Qiao, C.; Richman, J. D.; Roberts, D.; Ryd, A.; Tajima, H.; Witherell, M. S.; Balest, R.; Behrens, B. H.; Cho, K.; Ford, W. T.; Lohner, M.; Park, H.; Rankin, P.; Roy, J.; Smith, J. G.

In: Physical Review Letters, Vol. 77, No. 25, 1996, p. 5000-5004.

Research output: Contribution to journalArticle

Alexander, JP, Bebek, C, Berger, BE, Berkelman, K, Bloom, K, Cassel, DG, Cho, HA, Coffman, DM, Crowcroft, DS, Dickson, M, Drell, PS, Dumas, DJ, Ehrlich, R, Elia, R, Gaidarev, P, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Jones, CD, Jones, SL, Kandaswamy, J, Katayama, N, Kim, PC, Kreinick, DL, Lee, T, Liu, Y, Ludwig, GS, Masui, J, Mevissen, J, Mistry, NB, Ng, CR, Nordberg, E, Patterson, JR, Peterson, D, Riley, D, Soffer, A, Ward, C, Avery, P, Prescott, C, Yang, S, Yelton, J, Brandenburg, G, Briere, RA, Liu, T, Saulnier, M, Wilson, R, Yamamoto, H, Browder, TE, Li, F, Rodriguez, JL, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Karliner, I, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Ogg, M, Bellerive, A, Britton, DI, Janicek, R, MacFarlane, DB, McLean, KW, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Copty, N, Davis, R, Hancock, N, Kotov, S, Kravchenko, I, Kwak, N, Anderson, S, Kubota, Y, Lattery, M, O'Neill, JJ, Patton, S, Poling, R, Riehle, T, Savinov, V, Smith, A, Alam, MS, Athar, SB, Kim, IJ, Ling, Z, Mahmood, AH, Severini, H, Timm, S, Wappler, F, Duboscq, JE, Fujino, D, Fulton, R, Gan, KK, Honscheid, K, Kagan, H, Kass, R, Lee, J, Sung, M, Undrus, A, Wanke, R, White, C, Wolf, A, Zoeller, MM, Nemati, B, Richichi, SJ, Ross, WR, Skubic, P, Wood, M, Bishai, M, Fast, J, Gerndt, E, Hinson, JW, Miller, DH, Shibata, EI, Shipsey, IPJ, Yurko, M, Battle, M, Gibbons, L, Johnson, SD, Kwon, Y, Roberts, S, Sparks, K, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Schaffner, SF, Wang, R, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Shelkov, V, Staeck, J, Stroynowski, R, Volobouev, I, Ye, J, Artuso, M, Efimov, A, Gao, M, Goldberg, M, Greene, R, He, D, Kopp, S, Moneti, GC, Mountain, R, Mukhin, Y, Skwarnicki, T, Stone, S, Xing, X, Bartelt, J, Csorna, SE, Jain, V, Marka, S, Freyberger, A, Gibaut, D, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Barish, B, Chadha, M, Chan, S, Eigen, G, Miller, JS, O'Grady, C, Schmidtler, M, Urheim, J, Weinstein, AJ, Würthwein, F, Asner, DM, Athanas, M, Bliss, D, Brower, WS, Masek, G, Paar, HP, Gronberg, J, Korte, CM, Kutschke, R, Lange, DJ, Menary, S, Morrison, RJ, Nakanishi, S, Nelson, HN, Nelson, TK, Qiao, C, Richman, JD, Roberts, D, Ryd, A, Tajima, H, Witherell, MS, Balest, R, Behrens, BH, Cho, K, Ford, WT, Lohner, M, Park, H, Rankin, P, Roy, J & Smith, JG 1996, 'First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions', Physical Review Letters, vol. 77, no. 25, pp. 5000-5004.
Alexander JP, Bebek C, Berger BE, Berkelman K, Bloom K, Cassel DG et al. First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions. Physical Review Letters. 1996;77(25):5000-5004.
Alexander, J. P. ; Bebek, C. ; Berger, B. E. ; Berkelman, K. ; Bloom, K. ; Cassel, D. G. ; Cho, H. A. ; Coffman, D. M. ; Crowcroft, D. S. ; Dickson, M. ; Drell, P. S. ; Dumas, D. J. ; Ehrlich, R. ; Elia, R. ; Gaidarev, P. ; Gittelman, B. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Jones, C. D. ; Jones, S. L. ; Kandaswamy, J. ; Katayama, N. ; Kim, P. C. ; Kreinick, D. L. ; Lee, T. ; Liu, Y. ; Ludwig, G. S. ; Masui, J. ; Mevissen, J. ; Mistry, N. B. ; Ng, C. R. ; Nordberg, E. ; Patterson, J. R. ; Peterson, D. ; Riley, D. ; Soffer, A. ; Ward, C. ; Avery, P. ; Prescott, C. ; Yang, S. ; Yelton, J. ; Brandenburg, G. ; Briere, R. A. ; Liu, T. ; Saulnier, M. ; Wilson, R. ; Yamamoto, H. ; Browder, T. E. ; Li, F. ; Rodriguez, J. L. ; Bergfeld, T. ; Eisenstein, B. I. ; Ernst, J. ; Gladding, G. E. ; Gollin, G. D. ; Karliner, I. ; Palmer, M. ; Selen, M. ; Thaler, J. J. ; Edwards, K. W. ; Ogg, M. ; Bellerive, A. ; Britton, D. I. ; Janicek, R. ; MacFarlane, D. B. ; McLean, K. W. ; Patel, P. M. ; Sadoff, A. J. ; Ammar, R. ; Baringer, P. ; Bean, A. ; Besson, D. ; Coppage, D. ; Copty, N. ; Davis, R. ; Hancock, N. ; Kotov, S. ; Kravchenko, I. ; Kwak, N. ; Anderson, S. ; Kubota, Y. ; Lattery, M. ; O'Neill, J. J. ; Patton, S. ; Poling, R. ; Riehle, T. ; Savinov, V. ; Smith, A. ; Alam, M. S. ; Athar, S. B. ; Kim, I. J. ; Ling, Z. ; Mahmood, A. H. ; Severini, H. ; Timm, S. ; Wappler, F. ; Duboscq, J. E. ; Fujino, D. ; Fulton, R. ; Gan, K. K. ; Honscheid, K. ; Kagan, H. ; Kass, R. ; Lee, J. ; Sung, M. ; Undrus, A. ; Wanke, R. ; White, C. ; Wolf, A. ; Zoeller, M. M. ; Nemati, B. ; Richichi, S. J. ; Ross, W. R. ; Skubic, P. ; Wood, M. ; Bishai, M. ; Fast, J. ; Gerndt, E. ; Hinson, J. W. ; Miller, D. H. ; Shibata, E. I. ; Shipsey, I. P J ; Yurko, M. ; Battle, M. ; Gibbons, L. ; Johnson, S. D. ; Kwon, Y. ; Roberts, S. ; Sparks, K. ; Thorndike, E. H. ; Jessop, C. P. ; Lingel, K. ; Marsiske, H. ; Perl, M. L. ; Schaffner, S. F. ; Wang, R. ; Coan, T. E. ; Fadeyev, V. ; Korolkov, I. ; Maravin, Y. ; Narsky, I. ; Shelkov, V. ; Staeck, J. ; Stroynowski, R. ; Volobouev, I. ; Ye, J. ; Artuso, M. ; Efimov, A. ; Gao, M. ; Goldberg, M. ; Greene, R. ; He, D. ; Kopp, S. ; Moneti, G. C. ; Mountain, R. ; Mukhin, Y. ; Skwarnicki, T. ; Stone, S. ; Xing, X. ; Bartelt, J. ; Csorna, S. E. ; Jain, V. ; Marka, S. ; Freyberger, A. ; Gibaut, D. ; Kinoshita, K. ; Lai, I. C. ; Pomianowski, P. ; Schrenk, S. ; Bonvicini, G. ; Cinabro, D. ; Barish, B. ; Chadha, M. ; Chan, S. ; Eigen, G. ; Miller, J. S. ; O'Grady, C. ; Schmidtler, M. ; Urheim, J. ; Weinstein, A. J. ; Würthwein, F. ; Asner, D. M. ; Athanas, M. ; Bliss, Daniel ; Brower, W. S. ; Masek, G. ; Paar, H. P. ; Gronberg, J. ; Korte, C. M. ; Kutschke, R. ; Lange, D. J. ; Menary, S. ; Morrison, R. J. ; Nakanishi, S. ; Nelson, H. N. ; Nelson, T. K. ; Qiao, C. ; Richman, J. D. ; Roberts, D. ; Ryd, A. ; Tajima, H. ; Witherell, M. S. ; Balest, R. ; Behrens, B. H. ; Cho, K. ; Ford, W. T. ; Lohner, M. ; Park, H. ; Rankin, P. ; Roy, J. ; Smith, J. G. / First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions. In: Physical Review Letters. 1996 ; Vol. 77, No. 25. pp. 5000-5004.
@article{6ca7b9e3050c48ac819462ec4bd398f0,
title = "First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions",
abstract = "CLEO has studied B decays to πℓν, ρℓν, and ωℓν, where ℓ = e or μ, by incorporating the missing momentum into full B reconstruction. With the B0 and B+ modes combined according to isospin predictions for the relative partial widths, we obtain B(B0 → π-ℓ+ν) = (1.8 ± 0.4 ± 0.3 ± 0.2) × 10-4 and 3(B0 → ρ-ℓ+ν) = (2.5 ± 0.4-0.7 +0.5 ± 0.5) × 10-4, where the errors are statistical, systematic, and the estimated model dependence. We also estimate |Vub| = (3.3 ± 0.2-0.4 +0.3 ± 0.7) × 10-3.",
author = "Alexander, {J. P.} and C. Bebek and Berger, {B. E.} and K. Berkelman and K. Bloom and Cassel, {D. G.} and Cho, {H. A.} and Coffman, {D. M.} and Crowcroft, {D. S.} and M. Dickson and Drell, {P. S.} and Dumas, {D. J.} and R. Ehrlich and R. Elia and P. Gaidarev and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Jones, {C. D.} and Jones, {S. L.} and J. Kandaswamy and N. Katayama and Kim, {P. C.} and Kreinick, {D. L.} and T. Lee and Y. Liu and Ludwig, {G. S.} and J. Masui and J. Mevissen and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and Patterson, {J. R.} and D. Peterson and D. Riley and A. Soffer and C. Ward and P. Avery and C. Prescott and S. Yang and J. Yelton and G. Brandenburg and Briere, {R. A.} and T. Liu and M. Saulnier and R. Wilson and H. Yamamoto and Browder, {T. E.} and F. Li and Rodriguez, {J. L.} and T. Bergfeld and Eisenstein, {B. I.} and J. Ernst and Gladding, {G. E.} and Gollin, {G. D.} and I. Karliner and M. Palmer and M. Selen and Thaler, {J. J.} and Edwards, {K. W.} and M. Ogg and A. Bellerive and Britton, {D. I.} and R. Janicek and MacFarlane, {D. B.} and McLean, {K. W.} and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and N. Copty and R. Davis and N. Hancock and S. Kotov and I. Kravchenko and N. Kwak and S. Anderson and Y. Kubota and M. Lattery and O'Neill, {J. J.} and S. Patton and R. Poling and T. Riehle and V. Savinov and A. Smith and Alam, {M. S.} and Athar, {S. B.} and Kim, {I. J.} and Z. Ling and Mahmood, {A. H.} and H. Severini and S. Timm and F. Wappler and Duboscq, {J. E.} and D. Fujino and R. Fulton and Gan, {K. K.} and K. Honscheid and H. Kagan and R. Kass and J. Lee and M. Sung and A. Undrus and R. Wanke and C. White and A. Wolf and Zoeller, {M. M.} and B. Nemati and Richichi, {S. J.} and Ross, {W. R.} and P. Skubic and M. Wood and M. Bishai and J. Fast and E. Gerndt and Hinson, {J. W.} and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P J} and M. Yurko and M. Battle and L. Gibbons and Johnson, {S. D.} and Y. Kwon and S. Roberts and K. Sparks and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and Schaffner, {S. F.} and R. Wang and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and V. Shelkov and J. Staeck and R. Stroynowski and I. Volobouev and J. Ye and M. Artuso and A. Efimov and M. Gao and M. Goldberg and R. Greene and D. He and S. Kopp and Moneti, {G. C.} and R. Mountain and Y. Mukhin and T. Skwarnicki and S. Stone and X. Xing and J. Bartelt and Csorna, {S. E.} and V. Jain and S. Marka and A. Freyberger and D. Gibaut and K. Kinoshita and Lai, {I. C.} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and B. Barish and M. Chadha and S. Chan and G. Eigen and Miller, {J. S.} and C. O'Grady and M. Schmidtler and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein and Asner, {D. M.} and M. Athanas and Daniel Bliss and Brower, {W. S.} and G. Masek and Paar, {H. P.} and J. Gronberg and Korte, {C. M.} and R. Kutschke and Lange, {D. J.} and S. Menary and Morrison, {R. J.} and S. Nakanishi and Nelson, {H. N.} and Nelson, {T. K.} and C. Qiao and Richman, {J. D.} and D. Roberts and A. Ryd and H. Tajima and Witherell, {M. S.} and R. Balest and Behrens, {B. H.} and K. Cho and Ford, {W. T.} and M. Lohner and H. Park and P. Rankin and J. Roy and Smith, {J. G.}",
year = "1996",
language = "English (US)",
volume = "77",
pages = "5000--5004",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "25",

}

TY - JOUR

T1 - First measurement of the B → πℓν and B → ρ(ω)ℓν branching fractions

AU - Alexander, J. P.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Bloom, K.

AU - Cassel, D. G.

AU - Cho, H. A.

AU - Coffman, D. M.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - Drell, P. S.

AU - Dumas, D. J.

AU - Ehrlich, R.

AU - Elia, R.

AU - Gaidarev, P.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Jones, C. D.

AU - Jones, S. L.

AU - Kandaswamy, J.

AU - Katayama, N.

AU - Kim, P. C.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Ludwig, G. S.

AU - Masui, J.

AU - Mevissen, J.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Soffer, A.

AU - Ward, C.

AU - Avery, P.

AU - Prescott, C.

AU - Yang, S.

AU - Yelton, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Liu, T.

AU - Saulnier, M.

AU - Wilson, R.

AU - Yamamoto, H.

AU - Browder, T. E.

AU - Li, F.

AU - Rodriguez, J. L.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Karliner, I.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Ogg, M.

AU - Bellerive, A.

AU - Britton, D. I.

AU - Janicek, R.

AU - MacFarlane, D. B.

AU - McLean, K. W.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Copty, N.

AU - Davis, R.

AU - Hancock, N.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Anderson, S.

AU - Kubota, Y.

AU - Lattery, M.

AU - O'Neill, J. J.

AU - Patton, S.

AU - Poling, R.

AU - Riehle, T.

AU - Savinov, V.

AU - Smith, A.

AU - Alam, M. S.

AU - Athar, S. B.

AU - Kim, I. J.

AU - Ling, Z.

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PY - 1996

Y1 - 1996

N2 - CLEO has studied B decays to πℓν, ρℓν, and ωℓν, where ℓ = e or μ, by incorporating the missing momentum into full B reconstruction. With the B0 and B+ modes combined according to isospin predictions for the relative partial widths, we obtain B(B0 → π-ℓ+ν) = (1.8 ± 0.4 ± 0.3 ± 0.2) × 10-4 and 3(B0 → ρ-ℓ+ν) = (2.5 ± 0.4-0.7 +0.5 ± 0.5) × 10-4, where the errors are statistical, systematic, and the estimated model dependence. We also estimate |Vub| = (3.3 ± 0.2-0.4 +0.3 ± 0.7) × 10-3.

AB - CLEO has studied B decays to πℓν, ρℓν, and ωℓν, where ℓ = e or μ, by incorporating the missing momentum into full B reconstruction. With the B0 and B+ modes combined according to isospin predictions for the relative partial widths, we obtain B(B0 → π-ℓ+ν) = (1.8 ± 0.4 ± 0.3 ± 0.2) × 10-4 and 3(B0 → ρ-ℓ+ν) = (2.5 ± 0.4-0.7 +0.5 ± 0.5) × 10-4, where the errors are statistical, systematic, and the estimated model dependence. We also estimate |Vub| = (3.3 ± 0.2-0.4 +0.3 ± 0.7) × 10-3.

UR - http://www.scopus.com/inward/record.url?scp=0001132338&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001132338&partnerID=8YFLogxK

M3 - Article

VL - 77

SP - 5000

EP - 5004

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 25

ER -