Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B[superscript +]-->ρ[superscript 0]K[superscript *+] and B[superscript +]-->f0(980)K[superscript*+] decays
Author(s)
Dujmic, Denis; Sciolla, Gabriella; Zhao, M.; Cowan, Ray F
DownloadSanchez-2011-Measurements of bran.pdf (304.2Kb)
PUBLISHER_POLICY
Publisher Policy
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Alternative title
Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+→ρ0K*+ and B+→f0(980)K*+ decays
Terms of use
Metadata
Show full item recordAbstract
We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B+→ρ0K*+ and B+→f0(980)K*+ with a sample of (467±5)×106BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the SLAC National Accelerator Laboratory. We observe B+→ρ0K*+ with a significance of 5.3σ and measure the branching fraction B(B+→ρ0K*+)=(4.6±1.0±0.4)×10-6, the longitudinal polarization fL=0.78±0.12±0.03, and the CP-violation asymmetry ACP=0.31±0.13±0.03. We observe B+→f0(980)K*+ and measure the branching fraction B(B+→f0(980)K*+)×B(f0(980)→π+π-)=(4.2±0.6±0.3)×10-6 and the CP-violation asymmetry ACP=-0.15±0.12±0.03. The first uncertainty quoted is statistical and the second is systematic.
Date issued
2011-03Department
Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
del Amo Sanchez, P. et al. (The BABAR Collaboration). "Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B[superscript +]-->ρ[superscript 0]K[superscript *+] and B[superscript +]-->f0(980)K[superscript*+] decays." Phys. Rev. D 83, 051101(R) (2011) [8 pages] © 2011 American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-2368