Published December 5, 2008 | Version v1
Journal article Metadata-only

Evidence for Neutral B Meson Decays to ωK*0

Creators

  • 1. University of Cincinnati, Cincinnati, Ohio 45221 (United States)
  • 2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)

Description

We present the results of a study of the charmless vector-vector decay B0→ωK*0 with 657x106 BB pairs collected with the Belle detector at the KEKB e+e- collider. We measure the branching fraction to be B(B0→ωK*0)=[1.8±0.7(stat)±0.3(syst)]x10-6 with 3.0σ significance. We also perform a helicity analysis of the ω and K*0 vector mesons, and obtain the longitudinal polarization fraction fL(B0→ωK*0)=0.56±0.29(stat)-0.08+0.18(syst). Finally, we measure a large nonresonant branching fraction B[B0→ωK+π-;MKπ(set-membership sign)(0.755,1.250) GeV/c2 ]=[5.1±0.7(stat)±0.7(syst)]x10-6 with a significance of 9.5σ

Additional details

Identifiers

DOI
10.1103/PhysRevLett.101.231801;
arXiv
arXiv:0807.4271v2;

Publishing Information

Journal Title
Physical Review Letters
Journal Volume
101
Journal Issue
23
Journal Page Range
p. 231801-231801.6
ISSN
0031-9007
CODEN
PRLTAO

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40054160
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
B NEUTRAL MESONS; BRANCHING RATIO; K*-1410 MESONS; K*-1680 MESONS; K*-892 MESONS; OMEGA-1420 MESONS; OMEGA-1600 MESONS; OMEGA-782 MESONS; PAIR PRODUCTION; PARTICLE DECAY; PIONS MINUS
Descriptors DEC
B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; MESONS; PARTICLE PRODUCTION; PIONS; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; VECTOR MESONS

Optional Information

Notes
(c) 2008 The American Physical Society
Collaborations
Belle Collaboration