Measurement of the ratio B(W→τν)/B(W→eν) in pp¯ collisions at √s =1.8 TeV
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We have observed over 102 events of the type W followed by hadrons, where the taus are identified by their decay into one or three charged particles. We measure the cross section times branching ratio for pp»W and compare it to the value for We to directly measure the ratio of weak coupling constants g/ge. We find g/ge=0.970.07, consistent with lepton universality. © 1992 The American Physical Society.
author list (cited authors)
Abe, F., Amidei, D., Apollinari, G., Atac, M., Auchincloss, P., Baden, A. R., ... Zucchelli, S.