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Vol. 53, No. 6
December 1999
pp. 1115–1119
Parity violation in a gravitational theory with torsion: A geometrical interpretation
SOUMITRA SENGUPTA
Physics Department, Jadavpur University, Calcutta 700 032, India
Email: soumitra@juphys.ernet.in
Abstract.
In a space-time with torsion, the action for the gravitational field can be extended with a parity-violating piece. We show how to obtain such a piece from geometry itself, by suitably modifying the affine connection so as to include a pseudo-tensorial part. A consistent method is thus suggested for incorporating parity-violation in the Lagrangians of all matter fields with spin in a space-time background with torsion.
Keywords Gravity; alternate theories.
Pacs 04.50.+h
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