Observation of Exclusive B Decays to Final States Containing a Charmed Baryon

Technical Report · Fri May 23 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/813187· OSTI ID:813187

Jessop, Colin P

Using data collected in the region of the {Upsilon}(4S) resonance with the CLEO-II detector, they report on the first observation of exclusive decays of the B meson to final states with a charmed baryon. They have measured the branching fractions {Beta}(B{sup -} {yields} {Lambda}{sub c}{sup +}{bar p}{pi}{sup -}) = (0.62{sub -0.20}{sup +0.23} {+-} 0.11 {+-} 0.10) x 10{sup -3} and {Beta}({bar B}{sup 0} {yields} {Lambda}{sub c}{sup +}{bar p}{pi}{sup +}{pi}{sup -}) = (1.33{sub -0.42}{sup +0.46} {+-} 0.31 {+-} 0.21) x 10{sup -3}. In addition, they report upper limits for final states of the form {bar B} {yields} {Lambda}{sub c}{sup +}{bar p}(n{pi}) and {Lambda}{sub c}{sup +}{bar p}(n{pi}){pi}{sup 0} where (n{pi}) denotes up to four charged pions.

• 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: 813187
• Report Number(s): SLAC-PUB-9874; TRN: US0303739
• Resource Relation: Other Information: PBD: 23 May 2003
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
CHARMED BARYONS
PIONS
RESONANCE