Enhancement of hadronic b quark decays.
A class of previously unknown strong-interaction corrections is found to enhance the rate of nonleptonic decays of the quark by 5%-8%. This effect decreases the predicted fraction of semileptonic decays and brings it into fair agreement with experimental results. As well as solving a long-standing puzzle of measurements disagreeing with the standard model prediction, our work suggests a way for future precise studies of nonleptonic quark decays and their application to searching for "new physics."
Czarnecki
Andrzej
A
Department of Physics, University of Alberta Edmonton, Canada.
Slusarczyk
Maciej
M
Tkachov
Fyodor
F