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Measurements of the branching fractions and helicity amplitudes in B→D*ρ decays

  • S. E. Csorna
  • , I. Danko
  • , G. Bonvicini
  • , D. Cinabro
  • , M. Dubrovin
  • , S. McGee
  • , A. Bornheim
  • , E. Lipeles
  • , S. P. Pappas
  • , A. Shapiro
  • , W. M. Sun
  • , A. J. Weinstein
  • , R. A. Briere
  • , G. P. Chen
  • , T. Ferguson
  • , G. Tatishvili
  • , H. Vogel
  • , N. E. Adam
  • , J. P. Alexander
  • , K. Berkelman
  • V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, N. B. Mistry, J. R. Patterson, D. Peterson, J. Pivarski, S. J. Richichi, D. Riley, A. J. Sadoff, H. Schwarthoff, Y. Kubota, R. Poling, D. Cronin-Hennessy

Research output: Contribution to journalArticlepeer-review

Abstract

Using 9.1 fb-1 of e+e- data collected at the Upsilon(4S) with the CLEO detector using the Cornell Electron Storage Ring, measurements are reported for both the branching fractions and the helicity amplitudes for the decays B--->D*0rho- and B0-->D*+rho-. The fraction of longitudinal polarization in B0-->D*+rho - is found to be consistent with that in B0-- >D*+l-nu- at q2=M 2 rho, indicating that the factorization approximation works well. The longitudinal polarization in the B- mode is similar. The measurements also show evidence of nontrivial final-state interaction phases for the helicity amplitudes.

Original languageEnglish (US)
Article number112002
JournalPhysical Review D
Volume67
Issue number11
DOIs
StatePublished - Jun 1 2003

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