The S=1 relativistic oscillator

Following upon my previous paper about the S = 0 relativistic oscillator, I build up an oscillator-like system which one can call the S = 1 Proca oscillator. The Proca field function is obtained in the framework of the Bargmann-Wigner prescription and the interaction is introduced similarly to the S = 1/2 Dirac oscillator case regarded by Moshinsky and Szczepaniak. I obtain the intriguing rule of quantization E = h omega /2 for the parity states (-1)(j) and E = +/-h omega (j + 1/2) for the parity states -(-1)(j). There are no radial excitations. I apply the above-mentioned procedure to the case of the two-body relativistic oscillator, too.