Evidence for New Flavor Production at the Upsilon (4S)
Journal Article

Published: Wednesday, November 30, -1
Citation: Physical Review Letters, Volume 46, Number 1981, Pages 84-87
Link: http://prl.aps.org/abstract/PRL/v46/i2/p84_1

Authors (1 total): J. Rohlf


An enhancement has been observed in the inclusive cross section for direct single electrons produced in e+e- annihilations at the ϒ(4S). This is interpreted as evidence for a new weakly decaying particle, the B meson. A branching ratio for B→Xeν of [13±3 (±3)]% is inferred, where the first set of errors is statistical and the estimated systematic error is enclosed in parentheses.