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B^{0} meson decays to ρ^{0}K^{*0}, f_{0}K^{*0}, and ρ^{-}K^{*+}, including higher K^{*} resonances

J. Lees
•
V. Poireau
•
V. Tisserand
altro
S. Wu
2012
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We present branching fraction measurements for the decays B0→ρ0K*0, B0→f0K*0, and B0→ρ-K*+, where K* is an S-wave (Kπ)0* or a K*(892) meson; we also measure B0→f0K2*(1430)0. For the K*(892) channels, we report measurements of longitudinal polarization fractions (for ρ final states) and direct CP violation asymmetries. These results are obtained from a sample of (471.0±2.8)×106 BB̅ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the SLAC National Accelerator Laboratory. We observe ρ0K*(892)0, ρ0(Kπ)0*0, f0K*(892)0, and ρ-K*(892)+ with greater than 5σ significance, including systematics. We report first evidence for f0(Kπ)0*0 and f0K2*(1430)0, and place an upper limit on ρ-(Kπ)0*+. Our results in the K*(892) channels are consistent with no direct CP violation.
DOI
10.1103/PhysRevD.85.072005
WOS
WOS:000303310000003
Archivio
http://hdl.handle.net/11368/2564821
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84860437707
Diritti
metadata only access
Soggetti
  • Hadronic B meson deca...

  • Branching fraction

  • longitudinal polariza...

  • direct CP violation a...

Web of Science© citazioni
14
Data di acquisizione
Mar 23, 2024
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