Search for $e^+e^- --> Lambda_b^0 barLambda_b^0 Near Threshold
arXiv:hep-ex/0411078 · doi:10.1103/PhysRevD.71.012004 10.1103/PhysRevD.75.119905
Abstract
Using the CLEO III detector at CESR we study e+e- collisions in the center-of-mass energy close to, or above, Lambda_b anti-Lambda_b production threshold. We search for evidence of Lambda_b anti-Lambda_b resonance production and set upper limits based on inclusive hadron production as a barometer of Lambda_b anti-Lambda_b production.
15 pages postscript,also available through http://www.lns.cornell.edu/public/CLNS/2004/, to be published in PRD