Study of the Absolute Branching Fraction of Upsilon(4S) to anti-B{sup 0} B{sup 0} with Partial Reconstruction of anti-B{sup 0} to D*{sup +} Lepton{sup -} anti-Ni{sub Lepton} at BABAR

Technical Report · Thu Apr 29 00:00:00 EDT 2004

DOI:https://doi.org/10.2172/826880· OSTI ID:826880

Godang, R

Based on a data sample of 81.7 fb{sup -1} collected at the {Upsilon}(4S) resonance with the detector at the PEP-II asymmetric-energy B Factory at SLAC, we present the current status of the measurement of the branching fraction of {Upsilon}(4S) {yields} B{sup 0}{bar B}{sup 0}. Our study of the decay was performed through the exclusive decays {bar B}{sup 0} {yields} D*{sup +}{ell}{sup -} {bar {nu}}{sub {ell}} using a partial reconstruction method, where the D*{sup +} is detected only through the soft pion daughter from the decay D*{sup +} {yields} D{sup 0}{pi}{sup +}.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 826880
• Report Number(s): SLAC-PUB-10433; TRN: US0404257
• Resource Relation: Other Information: PBD: 29 Apr 2004
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
PIONS
RESONANCE