Quartic interaction vertex in the massive integer higher spin field theory in a constant electromagnetic field

The European Physical Journal C

V. A. Krykhtin¹  I. L. Buchbinder² 

[1] Department of Theoretical Physics, Tomsk State Pedagogical University, 634061, Tomsk, Russia;Department of Theoretical Physics, Tomsk State Pedagogical University, 634061, Tomsk, Russia;National Research Tomsk State University, 634050, Tomsk, Russia;

关键词: Gauge Transformation;    Lagrangian Formulation;    Gauge Parameter;    Bosonic Field;    BRST Charge;   

DOI  :  10.1140/epjc/s10052-015-3687-z

来源: Springer

【 摘 要 】

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).

【 授权许可】

CC BY