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PUB-11/013 Updated Measurement of the Branching Fractions of Color-Suppressed Decays B0bar mesons to D(*)0 pi0, eta, omega, and eta_prime and First Measurement of the Polarization for the Decay D*0 omega
Doc Type Journal Papers
Record Created June 7, 2011
SLAC-PUB
SLAC-PUB-14521  No citations
Preprint # 1107.5751 [hep-ex]
Accession Code DG11236
First Author Lees
Abstract
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We report updated branching fraction measurements of the color-suppressed decays 
B0bar to D0 pi0, D*0 pi0, D0 eta, D*0 eta, D0 omega, D*0 omega, D0 eta_prime, and D*0 eta_prime. 
We measure the branching fractions (*10^-4): BF(B0bar to D0 pi0) = 2.69 +/- 0.09 +/- 0.13, 
BF(B0bar to D*0 pi0) = 3.05 +/- 0.14 +/- 0.28, BF(B0bar to D0 eta) = 2.53 +/- 0.09 +/- 0.11, 
BF(B0bar to D*0 eta) = 2.69 +/- 0.14 +/- 0.23, BF(B0bar to D0 omega) = 2.57 +/- 0.11 +/- 0.14, 
BF(B0bar to D*0 omega) = 4.55 +/- 0.24 +/- 0.39, BF(B0bar to D0 eta_prime) = 1.48 +/- 0.13 +/- 0.07,
and BF(B0bar to D*0 eta_prime) = 1.49 +/- 0.22 +/- 0.15. We also present the first measurement 
of the longitudinal polarization fraction of the decay channel D*0 omega, f_L = (66.5+/- 4.7+/- 1.5) %. 
In the above, the first uncertainty is statistical and the second is systematic. 
The results are based on a sample of (454 +/- 5)*10^6 BBbar pairs collected at the Upsilon(4S) resonance, 
with the BaBar detector at the PEP-II storage rings at SLAC. The measurements are the most precise 
determinations of these quantities from a single experiment. They are compared to theoretical predictions 
obtained by factorization, Soft Collinear Effective Theory (SCET) and perturbative QCD (pQCD). 
We find that the presence of final state interactions is favored and the measurements are in better agreement with SCET than with pQCD. 
Revisions and Files 1 revised June 7, 2011
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06-OCT-2011 Abstract.txt Abstract txt 1.36
06-OCT-2011 Figures.zip Figure or plot ps.gz 146.52 The 42 figures of the paper in eps format and a single tar.gz
Submitted ToPhysical Review D
Date SubmittedJuly 29, 2011
Journal Year2011
Journal Volume84
Journal Article/Page Range112007
Categories
  • AWG: Breco