Evidence for B{sup +} {yields} J/{psi} p{bar {Lambda}} and search for B{sup 0} {yields} J/{psi} p{bar p}
- SLAC
We have performed a search for the decays B{sup +} {yields} J/{psi}p{bar {Lambda}} and B{sup 0} {yields} J/{psi}p{bar p} in a data set of (88.9 {+-} 1.0) x 10{sup 6} {Upsilon}(4S) decays collected by the BABAR experiment at the PEP-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center. Four charged B candidates have been observed with an expected background of 0.21 {+-} 0.14 events. The corresponding branching fraction is (12{sub -6}{sup +9} x 10{sup -6}), where statistical and systematic uncertainties have been combined. The result can be interpreted as a 90% confidence level (CL) upper limit of 26 x 10{sup -6}. We also find one B{sup 0} candidate, with an expected background of 0.64 {+-} 0.17 events, implying a 90% CL upper limit of 1.9 x 10{sup -6}.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 812974
- Report Number(s):
- SLAC-PUB-9690
- Country of Publication:
- United States
- Language:
- English
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