On Complete Sets of Polarization Observables

Abstract

A new criterion is developed which provides a check as to whether a chosen set of polarization observables is complete with respect to the determination of all independent $T$-matrix elements of a reaction of the type $a+b\to c+d+...$. As an illustrative example, this criterion is applied to the longitudinal observables of deuteron electrodisintegration.

Comments: 8 pages revtex, final version, accepted for Nucl. Phys. A