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@article{Beccaria:2022:10.1007/JHEP01(2022)056,
author = {Beccaria, M and Giombi, S and Tseytlin, AA},
doi = {10.1007/JHEP01(2022)056},
journal = {The Journal of High Energy Physics},
pages = {1--28},
title = {Higher order RG flow on the Wilson line in N=4 SYM},
url = {http://dx.doi.org/10.1007/JHEP01(2022)056},
volume = {2022},
year = {2022}
}

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TY  - JOUR
AB  - Extending earlier work, we find the two-loop term in the beta-function for the scalar coupling ζ in a generalized Wilson loop operator of the N = 4 SYM theory, working in the planar weak-coupling expansion. The beta-function for ζ has fixed points at ζ = ±1 and ζ = 0, corresponding respectively to the supersymmetric Wilson-Maldacena loop and to the standard Wilson loop without scalar coupling. As a consequence of our result for the beta-function, we obtain a prediction for the two-loop term in the anomalous dimension of the scalar field inserted on the standard Wilson loop. We also find a subset of higher-loop contributions (with highest powers of ζ at each order in ‘t Hooft coupling λ) coming from the scalar ladder graphs determining the corresponding terms in the five-loop beta-function. We discuss the related structure of the circular Wilson loop expectation value commenting, in particular, on consistency with a 1d defect version of the F-theorem. We also compute (to two loops in the planar ladder model approximation) the two-point correlators of scalars inserted on the Wilson line
AU  - Beccaria,M
AU  - Giombi,S
AU  - Tseytlin,AA
DO  - 10.1007/JHEP01(2022)056
EP  - 28
PY  - 2022///
SN  - 1029-8479
SP  - 1
TI  - Higher order RG flow on the Wilson line in N=4 SYM
T2  - The Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP01(2022)056
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000742649500007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007/JHEP01(2022)056
UR  - http://hdl.handle.net/10044/1/95125
VL  - 2022
ER  -

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