Download or read book Evidence for B 2!J/[psi] P{bar {Lambda}} and Search for B° 2!J/[psi] P{bar P} written by and published by . This book was released on 2003 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We have performed a search for the decays B 2!J/[psi]p{bar {Lambda}} and B° 2!J/[psi]p{bar p} in a data set of (88.9 ± 1.0) x 106 [Upsilon](4S) decays collected by the BABAR experiment at the PEP-II ee− 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 (12−6{sup +9} x 10−6), where statistical and systematic uncertainties have been combined. The result can be interpreted as a 90% confidence level (CL) upper limit of 26 x 10−6. We also find one B° candidate, with an expected background of 0.64 ± 0.17 events, implying a 90% CL upper limit of 1.9 x 10−6.