Absence of U(1) anomalous superamplitudes in N ≥ 5 supergravities
Author(s)Kallosh, Renata; Murli, Divyanshu; Van Proeyen, Antoine; Yamada, Yusuke; Freedman, Daniel Z
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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.
DepartmentMassachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Department of Physics
Journal of High Energy Physics
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).
Final published version