Local spatial densities for composite spin-3/2 systems

Abstract

The definition of local spatial densities by using sharply localized one-particle states is applied to spin-3/2 systems. Matrix elements of the electromagnetic current and the energy-momentum tensor are considered and integral expressions of associated spatial distributions in terms of form factors are derived.

Electromagnetic and gravitational local spatial densities for spin-1 systems

“…[11], the charge density possessing the usual probabilistic interpretation has been defined in the zero average momentum frame (ZAMF) of the system as well as in moving frames by using spherically symmetric sharply localized wave packets. 1 This definition has also been generalized to spin-1/2 and spin-3/2 systems and to the gravitational densities [30][31][32][33].…”