A note on consistent anomalies. Baulieu, L., Laroche, C., Picco, M., & Ohta, N. Physics Letters B, 414(1-2):77–84, nov, 1997.
A note on consistent anomalies [link]Paper  doi  abstract   bibtex   
Within a BRST formulation, we determine the expressions of the consistent anomaly for superstrings with extended worldsheet supersymmetries of rank N. We consider the O(N) superconformal algebras up to N=4, as well as the `small N=4' superalgebra. This is done using a superfield formalism, allowing to recover previous results that were expressed in components. Moreover, we identify the `small N=4' algebra as the constrained `large N=4' via a self-duality like condition in superspace.
@article{Baulieu1997,
abstract = {Within a BRST formulation, we determine the expressions of the consistent anomaly for superstrings with extended worldsheet supersymmetries of rank N. We consider the O(N) superconformal algebras up to N=4, as well as the `small N=4' superalgebra. This is done using a superfield formalism, allowing to recover previous results that were expressed in components. Moreover, we identify the `small N=4' algebra as the constrained `large N=4' via a self-duality like condition in superspace.},
archivePrefix = {arXiv},
arxivId = {hep-th/9707256},
author = {Baulieu, Laurent and Laroche, C{\'{e}}line and Picco, Marco and Ohta, Nobuyoshi},
doi = {10.1016/S0370-2693(97)01134-9},
eprint = {9707256},
file = {:Users/marco/Library/Application Support/Mendeley Desktop/Downloaded/Baulieu et al. - 1997 - A note on consistent anomalies(2).pdf:pdf},
issn = {03702693},
journal = {Physics Letters B},
month = {nov},
number = {1-2},
pages = {77--84},
primaryClass = {hep-th},
title = {{A note on consistent anomalies}},
url = {http://arxiv.org/abs/hep-th/9707256},
volume = {414},
year = {1997}
}

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