It is shown that a Rarita-Schwinger (spin 3/2) particle in an external electromagnetic field besides exhibiting acausal propagation also violates tree unitarity for semi-classical scattering. This suggests a general connection between acausal propagation and the violation of tree unitarity for high-spin (≥1) fields. © 1984 Società Italiana di Fisica.
Acausality and violation of S-matrix unitarity for Rarita-Schwinger particles in an external electromagnetic potential / Piccinini F.; Venturi G.; Zucchini R.. - In: LETTERE AL NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. - ISSN 0375-930X. - STAMPA. - 41:16(1984), pp. 536-540. [10.1007/BF02739499]
Acausality and violation of S-matrix unitarity for Rarita-Schwinger particles in an external electromagnetic potential
Venturi G.Secondo
;Zucchini R.Ultimo
1984
Abstract
It is shown that a Rarita-Schwinger (spin 3/2) particle in an external electromagnetic field besides exhibiting acausal propagation also violates tree unitarity for semi-classical scattering. This suggests a general connection between acausal propagation and the violation of tree unitarity for high-spin (≥1) fields. © 1984 Società Italiana di Fisica.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
