Photon emissions during a weak interaction of polarized leptons

The bremsstrahlung which accompanies the neutrino annihilation of polarized leptons is analyzed on the basis of the theory of a universal weak interaction. The photons produced during this process can in principle yield information about the vertex of the four - fermion interaction. Their angular and energy distributions and the high - energy behavior of the cross section depend strongly on the polar -ization states of the initial particles.