Branching Fraction Measurement of B to omega l nu decays

Journal Article · Wed Jun 13 00:00:00 EDT 2012 · arXiv:1205.6245

OSTI ID:1043202

Lees, J P; Poireau, V; Tisserand, V; Garra Tico, J; Grauges, E; Palano, A; Eigen, G; Stugu, B; Brown, D N; Kerth, L T; Kolomensky, Yu G; Lynch, G; Koch, H; Schroeder, T; Asgeirsson, D J; Hearty, C; Mattison, T S; McKenna, J A; So, R Y; Khan, A ; Blinov, V E

We present a measurement of the B{sup +} {yields} {omega}{ell}{sup +}{nu} branching fraction based on a sample of 467 million B{bar B} pairs recorded by the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} collider. We observe 1041 {+-} 133 signal decays, corresponding to a branching fraction of {Beta}(B{sup +} {yields} {omega}{ell}{sup +}{nu}) = (1.15 {+-} 0.15 {+-} 0.12) x 10{sup -4}, where the first error is statistical and the second is systematic. The dependence of the decay rate on q{sup 2}, the momentum transfer squared to the lepton system, is compared to QCD predictions of the form factors based on a quark model and light-cone sum rules.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1043202
• Report Number(s): SLAC-PUB-15029; arXiv:1205.6245; TRN: US1203023
• Journal Information: arXiv:1205.6245, Journal Name: arXiv:1205.6245
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
FORM FACTORS
LEPTONS
LIGHT CONE
MOMENTUM TRANSFER
QUANTUM CHROMODYNAMICS
QUARK MODEL
STANFORD LINEAR ACCELERATOR CENTER
SUM RULES
Experiment-HEP
HEPEX