The BRST quantization of the nonlinear WB
نویسنده
چکیده
We construct the BRST operator for the non-linear WB2 and W4 algebras. Contrary to the general belief, the nilpotent condition of the BRST operator doesn’t determine all the coefficients. We find a three and seven parameter family of nilpotent BRST operator for WB2 and W4 respectively. These free parameters are related to the canonical transformation of the ghost antighost fields.
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