Measurement of B→ρlv decay and |V ub |

B. H. Behrens, W. T. Ford, A. Gritsan, H. Krieg, J. Roy, J. G. Smith, J. P. Alexander, R. Baker, C. Bebek, B. E. Berger, K. Berkelman, V. Boisvert, D. G. Cassel, D. S. Crowcroft, M. Dickson, S. Von Dombrowski, P. S. Drell, K. M. Ecklund, R. Ehrlich, A. D. Foland & 182 others P. Gaidarev, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, P. I. Hopman, D. L. Kreinick, T. Lee, Y. Liu, T. O. Meyer, N. B. Mistry, C. R. Ng, E. Nordberg, M. Ogg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, P. G. Thies, B. Valant-Spaight, A. Warburton, C. Ward, M. Athanas, P. Avery, C. D. Jones, M. Lohner, C. Prescott, A. I. Rubiera, J. Yelton, J. Zheng, G. Brandenburg, R. A. Briere, A. Ershov, Y. S. Gao, D. Y.J. Kim, R. Wilson, T. E. Browder, Y. Li, J. L. Rodriguez, H. Yamamoto, T. Bergfeld, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, A. Bellerive, R. Janicek, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, R. Davis, S. Kotov, I. Kravchenko, N. Kwak, X. Zhao, L. Zhou, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Mahapatra, J. J. O'Neill, R. Poling, T. Riehle, A. Smith, M. S. Alam, S. B. Athar, A. H. Mahmood, S. Timm, F. Wappler, A. Anastassov, J. E. Duboscq, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, H. Kagan, R. Kass, J. Lorenc, H. Schwarthoff, E. Von Toeme, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic, A. Undrus, M. Bishai, S. Chen, J. Fast, J. W. Hinson, J. Lee, N. Menon, D. H. Miller, E. I. Shibata, I. P.J. Shipsey, S. Glenn, Youngjoon Kwon, A. L. Lyon, E. H. Thorndike, C. P. Jessop, K. Lingel, H. Marsiske, M. L. Perl, V. Savinov, D. Ugolini, X. Zhou, T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, R. Stroynowski, J. Ye, T. Wlodek, M. Artuso, R. Ayad, E. Dambasuren, S. Kopp, G. Majumder, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, A. Titov, G. Viehhauser, J. C. Wang, S. E. Csorna, K. W. McLean, S. Marka, Z. Xu, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, S. Chan, G. Eigen, E. Lipeles, M. Schmidtler, A. Shapiro, W. M. Sun, J. Urheim, A. J. Weinstein, F. Würthwein, D. E. Jaffe, G. Masek, H. P. Paar, E. M. Potter, S. Prell, V. Sharma, D. M. Asner, A. Eppich, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, H. N. Nelson, T. K. Nelson, J. D. Richman, D. Roberts

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Using a sample of 3.3×10 6 Y(4S)→BB̄ events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B→ρlv), |V ub |, and the partial rate (ΔΓ) in three bins of q 2 ≡(p B -p ρ ) 2 . We find B(B 0 →ρ -l +v)=(2.69±0.41 -0.40 +0.35 ±0.50)×10 -4 , |V ub |=(3.23±0.24 -0.26 +0.23 ±0.58)×10 -3 , ΔΓ(0<q 2 <7 GeV 2 /c 4 )=(7.6±3.0 -1.2 +0.9 ±3.0)×10 -2 ns -1 , ΔΓ(7<q 2 <14 GeV 2 /c 4 )=(4.8 ±2.9 -0.8 +0.7 ±0.7)×10 -2 ns -1 , and ΔΓ(14<q 2 <21 GeV 2 /c 4 )=(7.1±2.1 -1.1 +0.9 ±0.6)×10 -2 ns -1 . Here, l=e or μ, but not both, and the errors are statistical, systematic, and theoretical. The method is sensitive primarily to B→ρlv decays with leptons in the energy range above 2.3 GeV. Averaging with the previously published CLEO results for B→ρlv, we obtain B(B 0 →ρ - l + v)=(2.57±0.29 -0.46 +0.33 ±0.41)×10 -4 and |V ub |=(3.25 ±0.14 -0.29 +0.21 ±0.55)×10 -3 .

Original languageEnglish
Article number052001
Pages (from-to)1-19
Number of pages19
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume61
Issue number5
Publication statusPublished - 2000 Mar 1

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leptons
detectors
decay
electrons
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All Science Journal Classification (ASJC) codes

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

Cite this

Behrens, B. H., Ford, W. T., Gritsan, A., Krieg, H., Roy, J., Smith, J. G., ... Roberts, D. (2000). Measurement of B→ρlv decay and |V ub | Physical Review D - Particles, Fields, Gravitation and Cosmology, 61(5), 1-19. [052001].
Behrens, B. H. ; Ford, W. T. ; Gritsan, A. ; Krieg, H. ; Roy, J. ; Smith, J. G. ; Alexander, J. P. ; Baker, R. ; Bebek, C. ; Berger, B. E. ; Berkelman, K. ; Boisvert, V. ; Cassel, D. G. ; Crowcroft, D. S. ; Dickson, M. ; Von Dombrowski, S. ; Drell, P. S. ; Ecklund, K. M. ; Ehrlich, R. ; Foland, A. D. ; Gaidarev, P. ; Gibbons, L. ; Gittelman, B. ; Gray, S. W. ; Hartill, D. L. ; Heltsley, B. K. ; Hopman, P. I. ; Kreinick, D. L. ; Lee, T. ; Liu, Y. ; Meyer, T. O. ; Mistry, N. B. ; Ng, C. R. ; Nordberg, E. ; Ogg, M. ; Patterson, J. R. ; Peterson, D. ; Riley, D. ; Thayer, J. G. ; Thies, P. G. ; Valant-Spaight, B. ; Warburton, A. ; Ward, C. ; Athanas, M. ; Avery, P. ; Jones, C. D. ; Lohner, M. ; Prescott, C. ; Rubiera, A. I. ; Yelton, J. ; Zheng, J. ; Brandenburg, G. ; Briere, R. A. ; Ershov, A. ; Gao, Y. S. ; Kim, D. Y.J. ; Wilson, R. ; Browder, T. E. ; Li, Y. ; Rodriguez, J. L. ; Yamamoto, H. ; Bergfeld, T. ; Eisenstein, B. I. ; Ernst, J. ; Gladding, G. E. ; Gollin, G. D. ; Hans, R. M. ; Johnson, E. ; Karliner, I. ; Marsh, M. A. ; Palmer, M. ; Plager, C. ; Sedlack, C. ; Selen, M. ; Thaler, J. J. ; Williams, J. ; Edwards, K. W. ; Bellerive, A. ; Janicek, R. ; Patel, P. M. ; Sadoff, A. J. ; Ammar, R. ; Baringer, P. ; Bean, A. ; Besson, D. ; Coppage, D. ; Davis, R. ; Kotov, S. ; Kravchenko, I. ; Kwak, N. ; Zhao, X. ; Zhou, L. ; Anderson, S. ; Frolov, V. V. ; Kubota, Y. ; Lee, S. J. ; Mahapatra, R. ; O'Neill, J. J. ; Poling, R. ; Riehle, T. ; Smith, A. ; Alam, M. S. ; Athar, S. B. ; Mahmood, A. H. ; Timm, S. ; Wappler, F. ; Anastassov, A. ; Duboscq, J. E. ; Gan, K. K. ; Gwon, C. ; Hart, T. ; Honscheid, K. ; Kagan, H. ; Kass, R. ; Lorenc, J. ; Schwarthoff, H. ; Von Toeme, E. ; Zoeller, M. M. ; Richichi, S. J. ; Severini, H. ; Skubic, P. ; Undrus, A. ; Bishai, M. ; Chen, S. ; Fast, J. ; Hinson, J. W. ; Lee, J. ; Menon, N. ; Miller, D. H. ; Shibata, E. I. ; Shipsey, I. P.J. ; Glenn, S. ; Kwon, Youngjoon ; Lyon, A. L. ; Thorndike, E. H. ; Jessop, C. P. ; Lingel, K. ; Marsiske, H. ; Perl, M. L. ; Savinov, V. ; Ugolini, D. ; Zhou, X. ; Coan, T. E. ; Fadeyev, V. ; Korolkov, I. ; Maravin, Y. ; Narsky, I. ; Stroynowski, R. ; Ye, J. ; Wlodek, T. ; Artuso, M. ; Ayad, R. ; Dambasuren, E. ; Kopp, S. ; Majumder, G. ; Moneti, G. C. ; Mountain, R. ; Schuh, S. ; Skwarnicki, T. ; Stone, S. ; Titov, A. ; Viehhauser, G. ; Wang, J. C. ; Csorna, S. E. ; McLean, K. W. ; Marka, S. ; Xu, Z. ; Godang, R. ; Kinoshita, K. ; Lai, I. C. ; Pomianowski, P. ; Schrenk, S. ; Bonvicini, G. ; Cinabro, D. ; Greene, R. ; Perera, L. P. ; Zhou, G. J. ; Chan, S. ; Eigen, G. ; Lipeles, E. ; Schmidtler, M. ; Shapiro, A. ; Sun, W. M. ; Urheim, J. ; Weinstein, A. J. ; Würthwein, F. ; Jaffe, D. E. ; Masek, G. ; Paar, H. P. ; Potter, E. M. ; Prell, S. ; Sharma, V. ; Asner, D. M. ; Eppich, A. ; Gronberg, J. ; Hill, T. S. ; Lange, D. J. ; Morrison, R. J. ; Nelson, H. N. ; Nelson, T. K. ; Richman, J. D. ; Roberts, D. / Measurement of B→ρlv decay and |V ub | In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2000 ; Vol. 61, No. 5. pp. 1-19.
@article{f4405806de184307b7a93831d21a7ac7,
title = "Measurement of B→ρlv decay and |V ub |",
abstract = "Using a sample of 3.3×10 6 Y(4S)→BB̄ events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B→ρlv), |V ub |, and the partial rate (ΔΓ) in three bins of q 2 ≡(p B -p ρ ) 2 . We find B(B 0 →ρ -l +v)=(2.69±0.41 -0.40 +0.35 ±0.50)×10 -4 , |V ub |=(3.23±0.24 -0.26 +0.23 ±0.58)×10 -3 , ΔΓ(0<q 2 <7 GeV 2 /c 4 )=(7.6±3.0 -1.2 +0.9 ±3.0)×10 -2 ns -1 , ΔΓ(7<q 2 <14 GeV 2 /c 4 )=(4.8 ±2.9 -0.8 +0.7 ±0.7)×10 -2 ns -1 , and ΔΓ(14<q 2 <21 GeV 2 /c 4 )=(7.1±2.1 -1.1 +0.9 ±0.6)×10 -2 ns -1 . Here, l=e or μ, but not both, and the errors are statistical, systematic, and theoretical. The method is sensitive primarily to B→ρlv decays with leptons in the energy range above 2.3 GeV. Averaging with the previously published CLEO results for B→ρlv, we obtain B(B 0 →ρ - l + v)=(2.57±0.29 -0.46 +0.33 ±0.41)×10 -4 and |V ub |=(3.25 ±0.14 -0.29 +0.21 ±0.55)×10 -3 .",
author = "Behrens, {B. H.} and Ford, {W. T.} and A. Gritsan and H. Krieg and J. Roy and Smith, {J. G.} and Alexander, {J. P.} and R. Baker and C. Bebek and Berger, {B. E.} and K. Berkelman and V. Boisvert and Cassel, {D. G.} and Crowcroft, {D. S.} and M. Dickson and {Von Dombrowski}, S. and Drell, {P. S.} and Ecklund, {K. M.} and R. Ehrlich and Foland, {A. D.} and P. Gaidarev and L. Gibbons and B. Gittelman and Gray, {S. W.} and Hartill, {D. L.} and Heltsley, {B. K.} and Hopman, {P. I.} and Kreinick, {D. L.} and T. Lee and Y. Liu and Meyer, {T. O.} and Mistry, {N. B.} and Ng, {C. R.} and E. Nordberg and M. Ogg and Patterson, {J. R.} and D. Peterson and D. Riley and Thayer, {J. G.} and Thies, {P. G.} and B. Valant-Spaight and A. Warburton and C. Ward and M. Athanas and P. Avery and Jones, {C. D.} and M. Lohner and C. Prescott and Rubiera, {A. I.} and J. Yelton and J. Zheng and G. Brandenburg and Briere, {R. A.} and A. Ershov and Gao, {Y. S.} and Kim, {D. Y.J.} and R. Wilson and Browder, {T. E.} and Y. Li and Rodriguez, {J. L.} and H. Yamamoto and T. Bergfeld and Eisenstein, {B. I.} and J. Ernst and Gladding, {G. E.} and Gollin, {G. D.} and Hans, {R. M.} and E. Johnson and I. Karliner and Marsh, {M. A.} and M. Palmer and C. Plager and C. Sedlack and M. Selen and Thaler, {J. J.} and J. Williams and Edwards, {K. W.} and A. Bellerive and R. Janicek and Patel, {P. M.} and Sadoff, {A. J.} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and R. Davis and S. Kotov and I. Kravchenko and N. Kwak and X. Zhao and L. Zhou and S. Anderson and Frolov, {V. V.} and Y. Kubota and Lee, {S. J.} and R. Mahapatra and O'Neill, {J. J.} and R. Poling and T. Riehle and A. Smith and Alam, {M. S.} and Athar, {S. B.} and Mahmood, {A. H.} and S. Timm and F. Wappler and A. Anastassov and Duboscq, {J. E.} and Gan, {K. K.} and C. Gwon and T. Hart and K. Honscheid and H. Kagan and R. Kass and J. Lorenc and H. Schwarthoff and {Von Toeme}, E. and Zoeller, {M. M.} and Richichi, {S. J.} and H. Severini and P. Skubic and A. Undrus and M. Bishai and S. Chen and J. Fast and Hinson, {J. W.} and J. Lee and N. Menon and Miller, {D. H.} and Shibata, {E. I.} and Shipsey, {I. P.J.} and S. Glenn and Youngjoon Kwon and Lyon, {A. L.} and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and V. Savinov and D. Ugolini and X. Zhou and Coan, {T. E.} and V. Fadeyev and I. Korolkov and Y. Maravin and I. Narsky and R. Stroynowski and J. Ye and T. Wlodek and M. Artuso and R. Ayad and E. Dambasuren and S. Kopp and G. Majumder and Moneti, {G. C.} and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and A. Titov and G. Viehhauser and Wang, {J. C.} and Csorna, {S. E.} and McLean, {K. W.} and S. Marka and Z. Xu and R. Godang and K. Kinoshita and Lai, {I. C.} and P. Pomianowski and S. Schrenk and G. Bonvicini and D. Cinabro and R. Greene and Perera, {L. P.} and Zhou, {G. J.} and S. Chan and G. Eigen and E. Lipeles and M. Schmidtler and A. Shapiro and Sun, {W. M.} and J. Urheim and Weinstein, {A. J.} and F. W{\"u}rthwein and Jaffe, {D. E.} and G. Masek and Paar, {H. P.} and Potter, {E. M.} and S. Prell and V. Sharma and Asner, {D. M.} and A. Eppich and J. Gronberg and Hill, {T. S.} and Lange, {D. J.} and Morrison, {R. J.} and Nelson, {H. N.} and Nelson, {T. K.} and Richman, {J. D.} and D. Roberts",
year = "2000",
month = "3",
day = "1",
language = "English",
volume = "61",
pages = "1--19",
journal = "Physical review D: Particles and fields",
issn = "1550-7998",
publisher = "American Physical Society",
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}

Behrens, BH, Ford, WT, Gritsan, A, Krieg, H, Roy, J, Smith, JG, Alexander, JP, Baker, R, Bebek, C, Berger, BE, Berkelman, K, Boisvert, V, Cassel, DG, Crowcroft, DS, Dickson, M, Von Dombrowski, S, Drell, PS, Ecklund, KM, Ehrlich, R, Foland, AD, Gaidarev, P, Gibbons, L, Gittelman, B, Gray, SW, Hartill, DL, Heltsley, BK, Hopman, PI, Kreinick, DL, Lee, T, Liu, Y, Meyer, TO, Mistry, NB, Ng, CR, Nordberg, E, Ogg, M, Patterson, JR, Peterson, D, Riley, D, Thayer, JG, Thies, PG, Valant-Spaight, B, Warburton, A, Ward, C, Athanas, M, Avery, P, Jones, CD, Lohner, M, Prescott, C, Rubiera, AI, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Browder, TE, Li, Y, Rodriguez, JL, Yamamoto, H, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Plager, C, Sedlack, C, Selen, M, Thaler, JJ, Williams, J, Edwards, KW, Bellerive, A, Janicek, R, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Davis, R, Kotov, S, Kravchenko, I, Kwak, N, Zhao, X, Zhou, L, Anderson, S, Frolov, VV, Kubota, Y, Lee, SJ, Mahapatra, R, O'Neill, JJ, Poling, R, Riehle, T, Smith, A, Alam, MS, Athar, SB, Mahmood, AH, Timm, S, Wappler, F, Anastassov, A, Duboscq, JE, Gan, KK, Gwon, C, Hart, T, Honscheid, K, Kagan, H, Kass, R, Lorenc, J, Schwarthoff, H, Von Toeme, E, Zoeller, MM, Richichi, SJ, Severini, H, Skubic, P, Undrus, A, Bishai, M, Chen, S, Fast, J, Hinson, JW, Lee, J, Menon, N, Miller, DH, Shibata, EI, Shipsey, IPJ, Glenn, S, Kwon, Y, Lyon, AL, Thorndike, EH, Jessop, CP, Lingel, K, Marsiske, H, Perl, ML, Savinov, V, Ugolini, D, Zhou, X, Coan, TE, Fadeyev, V, Korolkov, I, Maravin, Y, Narsky, I, Stroynowski, R, Ye, J, Wlodek, T, Artuso, M, Ayad, R, Dambasuren, E, Kopp, S, Majumder, G, Moneti, GC, Mountain, R, Schuh, S, Skwarnicki, T, Stone, S, Titov, A, Viehhauser, G, Wang, JC, Csorna, SE, McLean, KW, Marka, S, Xu, Z, Godang, R, Kinoshita, K, Lai, IC, Pomianowski, P, Schrenk, S, Bonvicini, G, Cinabro, D, Greene, R, Perera, LP, Zhou, GJ, Chan, S, Eigen, G, Lipeles, E, Schmidtler, M, Shapiro, A, Sun, WM, Urheim, J, Weinstein, AJ, Würthwein, F, Jaffe, DE, Masek, G, Paar, HP, Potter, EM, Prell, S, Sharma, V, Asner, DM, Eppich, A, Gronberg, J, Hill, TS, Lange, DJ, Morrison, RJ, Nelson, HN, Nelson, TK, Richman, JD & Roberts, D 2000, ' Measurement of B→ρlv decay and |V ub | ', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 61, no. 5, 052001, pp. 1-19.

Measurement of B→ρlv decay and |V ub | . / Behrens, B. H.; Ford, W. T.; Gritsan, A.; Krieg, H.; Roy, J.; Smith, J. G.; Alexander, J. P.; Baker, R.; Bebek, C.; Berger, B. E.; Berkelman, K.; Boisvert, V.; Cassel, D. G.; Crowcroft, D. S.; Dickson, M.; Von Dombrowski, S.; Drell, P. S.; Ecklund, K. M.; Ehrlich, R.; Foland, A. D.; Gaidarev, P.; Gibbons, L.; Gittelman, B.; Gray, S. W.; Hartill, D. L.; Heltsley, B. K.; Hopman, P. I.; Kreinick, D. L.; Lee, T.; Liu, Y.; Meyer, T. O.; Mistry, N. B.; Ng, C. R.; Nordberg, E.; Ogg, M.; Patterson, J. R.; Peterson, D.; Riley, D.; Thayer, J. G.; Thies, P. G.; Valant-Spaight, B.; Warburton, A.; Ward, C.; Athanas, M.; Avery, P.; Jones, C. D.; Lohner, M.; Prescott, C.; Rubiera, A. I.; Yelton, J.; Zheng, J.; Brandenburg, G.; Briere, R. A.; Ershov, A.; Gao, Y. S.; Kim, D. Y.J.; Wilson, R.; Browder, T. E.; Li, Y.; Rodriguez, J. L.; Yamamoto, H.; Bergfeld, T.; Eisenstein, B. I.; Ernst, J.; Gladding, G. E.; Gollin, G. D.; Hans, R. M.; Johnson, E.; Karliner, I.; Marsh, M. A.; Palmer, M.; Plager, C.; Sedlack, C.; Selen, M.; Thaler, J. J.; Williams, J.; Edwards, K. W.; Bellerive, A.; Janicek, R.; Patel, P. M.; Sadoff, A. J.; Ammar, R.; Baringer, P.; Bean, A.; Besson, D.; Coppage, D.; Davis, R.; Kotov, S.; Kravchenko, I.; Kwak, N.; Zhao, X.; Zhou, L.; Anderson, S.; Frolov, V. V.; Kubota, Y.; Lee, S. J.; Mahapatra, R.; O'Neill, J. J.; Poling, R.; Riehle, T.; Smith, A.; Alam, M. S.; Athar, S. B.; Mahmood, A. H.; Timm, S.; Wappler, F.; Anastassov, A.; Duboscq, J. E.; Gan, K. K.; Gwon, C.; Hart, T.; Honscheid, K.; Kagan, H.; Kass, R.; Lorenc, J.; Schwarthoff, H.; Von Toeme, E.; Zoeller, M. M.; Richichi, S. J.; Severini, H.; Skubic, P.; Undrus, A.; Bishai, M.; Chen, S.; Fast, J.; Hinson, J. W.; Lee, J.; Menon, N.; Miller, D. H.; Shibata, E. I.; Shipsey, I. P.J.; Glenn, S.; Kwon, Youngjoon; Lyon, A. L.; Thorndike, E. H.; Jessop, C. P.; Lingel, K.; Marsiske, H.; Perl, M. L.; Savinov, V.; Ugolini, D.; Zhou, X.; Coan, T. E.; Fadeyev, V.; Korolkov, I.; Maravin, Y.; Narsky, I.; Stroynowski, R.; Ye, J.; Wlodek, T.; Artuso, M.; Ayad, R.; Dambasuren, E.; Kopp, S.; Majumder, G.; Moneti, G. C.; Mountain, R.; Schuh, S.; Skwarnicki, T.; Stone, S.; Titov, A.; Viehhauser, G.; Wang, J. C.; Csorna, S. E.; McLean, K. W.; Marka, S.; Xu, Z.; Godang, R.; Kinoshita, K.; Lai, I. C.; Pomianowski, P.; Schrenk, S.; Bonvicini, G.; Cinabro, D.; Greene, R.; Perera, L. P.; Zhou, G. J.; Chan, S.; Eigen, G.; Lipeles, E.; Schmidtler, M.; Shapiro, A.; Sun, W. M.; Urheim, J.; Weinstein, A. J.; Würthwein, F.; Jaffe, D. E.; Masek, G.; Paar, H. P.; Potter, E. M.; Prell, S.; Sharma, V.; Asner, D. M.; Eppich, A.; Gronberg, J.; Hill, T. S.; Lange, D. J.; Morrison, R. J.; Nelson, H. N.; Nelson, T. K.; Richman, J. D.; Roberts, D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 61, No. 5, 052001, 01.03.2000, p. 1-19.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of B→ρlv decay and |V ub |

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Gritsan, A.

AU - Krieg, H.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Baker, R.

AU - Bebek, C.

AU - Berger, B. E.

AU - Berkelman, K.

AU - Boisvert, V.

AU - Cassel, D. G.

AU - Crowcroft, D. S.

AU - Dickson, M.

AU - Von Dombrowski, S.

AU - Drell, P. S.

AU - Ecklund, K. M.

AU - Ehrlich, R.

AU - Foland, A. D.

AU - Gaidarev, P.

AU - Gibbons, L.

AU - Gittelman, B.

AU - Gray, S. W.

AU - Hartill, D. L.

AU - Heltsley, B. K.

AU - Hopman, P. I.

AU - Kreinick, D. L.

AU - Lee, T.

AU - Liu, Y.

AU - Meyer, T. O.

AU - Mistry, N. B.

AU - Ng, C. R.

AU - Nordberg, E.

AU - Ogg, M.

AU - Patterson, J. R.

AU - Peterson, D.

AU - Riley, D.

AU - Thayer, J. G.

AU - Thies, P. G.

AU - Valant-Spaight, B.

AU - Warburton, A.

AU - Ward, C.

AU - Athanas, M.

AU - Avery, P.

AU - Jones, C. D.

AU - Lohner, M.

AU - Prescott, C.

AU - Rubiera, A. I.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Browder, T. E.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Yamamoto, H.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

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PY - 2000/3/1

Y1 - 2000/3/1

N2 - Using a sample of 3.3×10 6 Y(4S)→BB̄ events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B→ρlv), |V ub |, and the partial rate (ΔΓ) in three bins of q 2 ≡(p B -p ρ ) 2 . We find B(B 0 →ρ -l +v)=(2.69±0.41 -0.40 +0.35 ±0.50)×10 -4 , |V ub |=(3.23±0.24 -0.26 +0.23 ±0.58)×10 -3 , ΔΓ(0<q 2 <7 GeV 2 /c 4 )=(7.6±3.0 -1.2 +0.9 ±3.0)×10 -2 ns -1 , ΔΓ(7<q 2 <14 GeV 2 /c 4 )=(4.8 ±2.9 -0.8 +0.7 ±0.7)×10 -2 ns -1 , and ΔΓ(14<q 2 <21 GeV 2 /c 4 )=(7.1±2.1 -1.1 +0.9 ±0.6)×10 -2 ns -1 . Here, l=e or μ, but not both, and the errors are statistical, systematic, and theoretical. The method is sensitive primarily to B→ρlv decays with leptons in the energy range above 2.3 GeV. Averaging with the previously published CLEO results for B→ρlv, we obtain B(B 0 →ρ - l + v)=(2.57±0.29 -0.46 +0.33 ±0.41)×10 -4 and |V ub |=(3.25 ±0.14 -0.29 +0.21 ±0.55)×10 -3 .

AB - Using a sample of 3.3×10 6 Y(4S)→BB̄ events collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR), we measure B(B→ρlv), |V ub |, and the partial rate (ΔΓ) in three bins of q 2 ≡(p B -p ρ ) 2 . We find B(B 0 →ρ -l +v)=(2.69±0.41 -0.40 +0.35 ±0.50)×10 -4 , |V ub |=(3.23±0.24 -0.26 +0.23 ±0.58)×10 -3 , ΔΓ(0<q 2 <7 GeV 2 /c 4 )=(7.6±3.0 -1.2 +0.9 ±3.0)×10 -2 ns -1 , ΔΓ(7<q 2 <14 GeV 2 /c 4 )=(4.8 ±2.9 -0.8 +0.7 ±0.7)×10 -2 ns -1 , and ΔΓ(14<q 2 <21 GeV 2 /c 4 )=(7.1±2.1 -1.1 +0.9 ±0.6)×10 -2 ns -1 . Here, l=e or μ, but not both, and the errors are statistical, systematic, and theoretical. The method is sensitive primarily to B→ρlv decays with leptons in the energy range above 2.3 GeV. Averaging with the previously published CLEO results for B→ρlv, we obtain B(B 0 →ρ - l + v)=(2.57±0.29 -0.46 +0.33 ±0.41)×10 -4 and |V ub |=(3.25 ±0.14 -0.29 +0.21 ±0.55)×10 -3 .

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M3 - Article

VL - 61

SP - 1

EP - 19

JO - Physical review D: Particles and fields

JF - Physical review D: Particles and fields

SN - 1550-7998

IS - 5

M1 - 052001

ER -

Behrens BH, Ford WT, Gritsan A, Krieg H, Roy J, Smith JG et al. Measurement of B→ρlv decay and |V ub | Physical Review D - Particles, Fields, Gravitation and Cosmology. 2000 Mar 1;61(5):1-19. 052001.