Descent Equation for superloop and cyclicity of OPE

Research output: Contribution to journalArticle

Abstract

We study the so-called Descent, or Q¯, Equation for the null polygonal supersymmetric Wilson loop in the framework of the pentagon operator product expansion. To properly address this problem, one requires to restore the cyclicity of the loop broken by the choice of OPE channels. In the course of the study, we unravel a phenomenon of twist enhancement when passing to a cyclically shifted channel. Currently, we focus on the consistency of the all-order Descent Equation for the particular case relating the NMHV heptagon to MHV hexagon. We find that the equation establishes a relation between contributions of different twists and successfully verify it in perturbation theory making use of available bootstrap predictions for elementary pentagons.

Original languageEnglish (US)
Pages (from-to)815-833
Number of pages19
JournalNuclear Physics B
Volume913
DOIs
StatePublished - Dec 1 2016

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descent
hexagons
perturbation theory
operators
expansion
augmentation
products
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Descent Equation for superloop and cyclicity of OPE. / Belitsky, Andrei.

In: Nuclear Physics B, Vol. 913, 01.12.2016, p. 815-833.

Research output: Contribution to journalArticle

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