Abstract
After adding an RNS-like fermionic vector ψ m to the pure spinor formalism, the non-minimal b ghost takes a simple form similar to the pure spinor BRST operator. The N=2 superconformal field theory generated by the b ghost and the BRST current can be interpreted as a “dynamical twisting” of the RNS formalism where the choice of which spin \( \frac{1}{2} \) ψ m variables are twisted into spin 0 and spin 1 variables is determined by the pure spinor variables that parameterize the coset SO(10)/U(5).
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ArXiv ePrint: 1305.0693
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Berkovits, N. Dynamical twisting and the b ghost in the pure spinor formalism. J. High Energ. Phys. 2013, 91 (2013). https://doi.org/10.1007/JHEP06(2013)091
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DOI: https://doi.org/10.1007/JHEP06(2013)091