New Results on Precision Studies of Heavy Vector Boson Physics

摘要

We present new results for two important heavy vector boson physicsprocesses: (1), virtual corrections to hard bremsstrahlung which are relevantto precision predictions for the radiative return process in Z boson productionat and beyond LEP2 energies ; and, (2), electric charge screening effects insingle W production with finite p_T, multiple photon radiation in high energycollider physics processes. In both cases we show that we improve therespective precision tag significantly. Phenomenological implications arediscussed.