Abstract
The weak interactions describing decays of elementary particles have some regularity and universality. The Fermi-type weak fermion interaction with the same universal coupling constants for parity conserving and nonconserving terms has explained successfully the nuclear beta decay and μ-e decay. As for the pion and K-meson decays, it also seems that the universal weak boson fermion interaction of gradient type with the same amount of even and odd parts is more desirable than the direct type coupling. As for the hyperon decays, recent observations on the angular assymmetries have appeared to emphasize a similar tendency. Calculated results are presented in tables and figures.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
