STUDY OF SEMILEPTONIC DECAYS OF B MESONS TO CHARMED BARYONS

Technical Report · Thu May 01 00:00:00 EDT 2003

DOI:https://doi.org/10.2172/813060· OSTI ID:813060

Jessop, Colin P

Using data collected by the CLEO II detector at a center-of-mass energy on or near the {Upsilon}(4S) resonance, we have determined the 90% confidence level upper limit {Beta}({bar B} {yields} {Lambda}{sub c}{sup +}e{sup -} X)/{Beta}({bar B} {yields} ({Lambda}{sub c}{sup +} or {bar {Lambda}}{sub c}{sup -})X) < 0.05 for electrons with momentum above 0.6 GeV/c. We have also obtained the limit {Beta}(B{sup -} {yields} {Lambda}{sub c}{sup +}{bar p}e{sup -}{bar {nu}}{sub e})/{Beta}({bar B} {yields} {Lambda}{sub c}{sup +}{bar p}X) < 0.04 at the 90% confidence level and measured the ratio {Beta}({bar B} {yields} {Lambda}{sub c}{sup +}{bar p}X)/{Beta}({bar B} {yields} ({Lambda}{sub c}{sup +} or {bar {Lambda}}{sub c}{sup -})X) = 0.57 {+-} 0.05 {+-} 0.05.

• 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: 813060
• Report Number(s): SLAC-PUB-9757; TRN: US0303629
• Resource Relation: Other Information: PBD: 1 May 2003
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
CHARMED BARYONS
ELECTRONS
RESONANCE
SEMILEPTONIC DECAY