Absence of U(1) anomalous superamplitudes in N ≥ 5 supergravities
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Freedman2017_Article_AbsenceOfU1AnomalousSuperampli.pdf
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Author(s)
Kallosh, Renata
Murli, Divyanshu
Van Proeyen, Antoine
Yamada, Yusuke
Freedman, Daniel Z
Date Issued
May 2017
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
Freedman, Daniel Z., Renata Kallosh, Divyanshu Murli, Antoine Van Proeyen, and Yusuke Yamada. “Absence of U(1) anomalous superamplitudes in N ≥ 5 supergravities." Journal of High Energy Physics 2017, no. 5 (May 2017).
Version
Final published version
Abstract
We list all potential candidates for U(1) anomalous non-local 1-loop 4-point amplitudes and higher loop UV divergences in N ≥ 5 supergravities. The relevant chiral superinvariants are constructed from linearized chiral superfields and define the corresponding superamplitudes. The anomalous amplitudes, of the kind present in N = 4, are shown to be absent in N ≥ 5. In N = 6 supergravity the result is deduced from the double-copy (N = 4) Y M × (N = 2) Y M model, whereas in N = 5, 8 the result on absence of anomalous amplitudes is derived in supergravities as well as in the (N = 4) Y M × (N − 4) Y M double-copy models.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1007/JHEP05(2017)067
