https://doi.org/10.1140/epjc/s10052-015-3687-z
Regular Article - Theoretical Physics
Quartic interaction vertex in the massive integer higher spin field theory in a constant electromagnetic field
1
Department of Theoretical Physics, Tomsk State Pedagogical University, Tomsk, 634061, Russia
2
National Research Tomsk State University, Tomsk, 634050, Russia
* e-mail: krykhtin@tspu.edu.ru
Received:
23
July
2015
Accepted:
17
September
2015
Published online:
27
September
2015
We consider the massive integer higher spin fields coupled to an external constant electromagnetic field in flat space of arbitrary dimension and find a gauge invariant quartic interaction vertex which is quadratic in a dynamical higher spin field and quadratic in the external field. The construction of the vertex is based on the BRST approach to higher spin field theory where no off-shell constraints on the fields and on the gauge parameters are imposed from the very beginning (unconstrained formulation).
© SIF and Springer-Verlag Berlin Heidelberg, 2015