Deformations and parity

  • Metric is parity-even, and NSNS -field is parity-odd

  • The RR 1-form and 5-form are parity even, and the RR 3-form is parity odd.

  • Dilaton is parity-even

Nonphysical deformation which we considered is parity-odd, and the deformation of BRST operator is also parity-odd. Therefore it appears that it should not correspond to dilaton.