An exact formula for the radiation of a moving quark in N = 4 super Yang Mills

Diego Correa*, Johannes Henn, Juan Maldacena, Amit Sever

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We derive an exact formula for the cusp anomalous dimension at small angles. This is done by relating the latter to the computation of certain 1/8 BPS Wilson loops which was performed by supersymmetric localization. This function of the coupling also determines the power emitted by a moving quark in N = 4 super Yang Mills, as well as the coefficient of the two point function of the displacement operator on the Wilson loop. By a similar method we compute the near BPS expansion of the generalized cusp anomalous dimension.

Original languageEnglish
Article number48
JournalJournal of High Energy Physics
Volume2012
Issue number6
DOIs
StatePublished - 2012
Externally publishedYes

Keywords

  • 't Hooft and Polyakov loops
  • 1/N expansion
  • AdS-CFT correspondence
  • Wilson

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