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We address the near-collinear expansion of NMHV six-particle scattering amplitudes at strong value of the 't Hooft coupling in planar maximally supersymmetric Yang–Mills theory. We complement recent studies of this observable within the context of the Pentagon Operator Product Expansion,

We address the near-collinear expansion of NMHV six-particle scattering amplitudes at strong value of the 't Hooft coupling in planar maximally supersymmetric Yang–Mills theory. We complement recent studies of this observable within the context of the Pentagon Operator Product Expansion, via the dual superWilson loop description, by studying effects of multiple scalar exchanges that accompany (or not) massive flux-tube excitations. Due to the fact that holes have a very small, nonperturbatively generated mass mh which is exponentially suppressed in the 't Hooft coupling, their exchanges must be resummed in the ultraviolet limit, T <<1/mh. This procedure yields a contribution to the expectation value of the superloop which enters on equal footing with the classical area — a phenomenon which was earlier observed for MHV amplitudes. In all components, the near-massless scalar exchanges factorize from the ones of massive particles, at leading order in strong coupling.

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    Title
    • Nonperturbative Enhancement of Superloop at Strong Coupling
    Contributors
    Date Created
    2016-08-20
    Resource Type
  • Text
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    Identifier
    • Digital object identifier: 10.1016/j.nuclphysb.2016.08.017
    • Identifier Type
      International standard serial number
      Identifier Value
      0550-3213
    • Identifier Type
      International standard serial number
      Identifier Value
      1873-1562

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    Belitsky, A. (2016). Nonperturbative enhancement of superloop at strong coupling. Nuclear Physics B, 911, 425-446. doi:10.1016/j.nuclphysb.2016.08.017

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