Topological mass term for gravity induced by matter

Van Der Bij, J. J. ; Pisarski, Robert D. ; Rao, Sumathi (1986) Topological mass term for gravity induced by matter Physics Letters B, 179 (1-2). pp. 87-91. ISSN 0370-2693

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The contribution of massive fermions and topologically massive gauge fields to a Chern-Simons term for the graviton is computed to one-loop order in three dimensions. Invariance under large coordinate transformations places restrictions on the number of these massive matter fields. The parity anomaly for massless fermions is determined, and a possible parity anomaly for massless gauge fields is suggested.

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