Finding the Radiation Amplitude Zero in W gamma Production-Is it Unique to the Standard Model

摘要

In the light of recent experimental observation of the Radiation Amplitude Zero (RAZ) in W(gamma) production by CDF at Fermilab, we consider its consequences. Is the RAZ unique to the Standard Model (S.M.). Although it is not for (bar(nu))(sub e)e(sup -)(yields) W(sup -)(gamma), in the case of d(bar u)(yields) W(sup -)(gamma), which is the case of experimental interest, observation of the RAZ implies that the S.M. must be correct.