BRST Lagrangian construction for spin-2 field in Einstein space

Details BRST Lagrangian construction for spin-2 field in Einstein space BRST Lagrangian construction for spin-2 field in Einstein space

2009-12-03

arxiv.org/abs/0912.0611v3

Phys.Lett.B685:208-214,2010

Physics

High Energy Physics

High Energy Physics - Theory

13 pages; V2 Minor changes, references added; V3 Minor changes including the title, references added, version accepted for pub

Scientific paper

10.1016/j.physletb.2010.01.065

We explore a new possibility of BRST construction in higher spin field theory to obtain a consistent Lagrangian for massive spin-2 field in Einstein space. Such approach automatically leads to gauge invariant Lagrangian with suitable auxiliary and Stuckelberg fields. It is proved that in this case a propagation of spin-2 field is hyperbolic and causal. Also we extend notion of partial masslessness for spin-2 field in the background under consideration.

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