Is there a Vector Boson Coupling to Baryon Number?
arXiv:hep-ph/9411355 · doi:10.1016/0370-2693(95)00052-M
Abstract
Discrepancies in measurements of the QCD running coupling constant are consistent with a new vector gauge boson coupling to baryon number with strength aB~0.1. Upsilon decays constrain such a boson to have a mass greater than about 35 GeV. It is difficult to observe such a boson in Z decays, e+e- annihilation, or hadronic interactions.
uufiles encoded Postscript file, 14 pages