V G Zima and S O Fedoruk 1999 Class. Quantum Grav. 16 3653 doi:10.1088/0264-9381/16/11/312
Weinberg propagator of a free massive particle with an arbitrary spin from the BFV-BRST path integral
V G Zima
and S O Fedoruk
The transition amplitude is obtained for a free massive particle of arbitrary spin by calculating the path integral in the index-spinor formulation within the BFV-BRST approach. No renormalizations of the path integral measure were applied. The calculation has given the Weinberg propagator written in the index-free form by the use of an index spinor. The choice of boundary conditions on the index spinor determines the holomorphic or antiholomorphic representation for the canonical description of particle/antiparticle spin.
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Issue 11 (November 1999)
Received 3 December 1998, in final form 31 August 1999
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Weinberg propagator of a free massive particle with an arbitrary spin from the BFV-BRST path integral
V G Zima and S O Fedoruk 1999 Class. Quantum Grav. 16 3653
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