Fermi advanced his successful theory of p-decay in 1934. It has since then undergone
development in which two general directions may be dis cerned. One has been a …

Now the discussion will be restricted to develop-ments regarding the core of Fermi's theory,
the detailed form of the coupling itself. Any linear combination of the five forms h „h „, h~, h, h …

In 1934, Enrico Fermi, then a professor of theoretical physics at the University of Rome, Italy,
proposed his clear and simple description of [3 decay. He assumed the existence of the …

INTRODUCTION"'N the last few years study ofthe laws of P decay has-. been the object of
many experimental and theoretical investigations. As a consequence, the form of the nuclear …

XHE development of our knowledge on beta decay of radioactive nuclei can be divided into
two distinct historical stages. The start of each of them was heralded by mighty scientific …

On the basis of the hypothesis that the same form of interaction acts among any spin-½
particles, it is interesting to apply the interaction law found for β decay to the muon …

OF all theories of elementary particle interactions, the most fully investigated, after quarttum
electrodynamics, is that responsible for nuclear fi-decay. Here the basic processes which …

'~) R. Yang will speak to us on the" new" particles. In this talk, I shall speak only ofthe" old"
particles. To simplify thematter, the main part of this talk will be concerned with the question …

n+ p~@+ v, the first is the experimentally observed p-meson absorption reaction, whereas,
the second, the annihilation of a neutron and an antiproton, plays an important role in 7i …

P-decay would help in understanding the fundamental character of P-decay and its
connection with other nuclear phenomena. According to Konopinski,'the P-decay interaction …