TY - JOUR
T1 - Descent Equation for superloop and cyclicity of OPE
AU - Belitsky, Andrei
N1 - Publisher Copyright:
© 2016 The Author(s)
PY - 2016/12/1
Y1 - 2016/12/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.nuclphysb.2016.10.011
DO - 10.1016/j.nuclphysb.2016.10.011
M3 - Article
AN - SCOPUS:84994607245
SN - 0550-3213
VL - 913
SP - 815
EP - 833
JO - Nuclear Physics B
JF - Nuclear Physics B
ER -