Lifetime and Decay of Unstable Particles in SMatrix Theory
Abstract
An investigation is made of the possible time dependence of decay laws for unstable particles. The probability P(t) that an unstable particle has not decayed at time t is expressed in terms of Smatrix quantities. It is concluded that, contrary to popular belief, the exponential decay law P=e^{Γt} is only one of a discrete set of possible decay laws.
 Publication:

Physical Review
 Pub Date:
 December 1964
 DOI:
 10.1103/PhysRev.136.B1472
 Bibcode:
 1964PhRv..136.1472G