Abstract
A prescription for decomposition into form factors of the matrix elements of totally symmetric tensor currents between (s, 0) and (s′, 0) spinor states of the incoming and outgoing particles of spins s and s′ is presented. The case of the electromagnetic current is studied in some detail, and a procedure to modify the above prescription resulting in the grouping of the form factors into Dirac‐type and Pauli‐type classes is given. Several examples are used for illustration.