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  1. Pubblicazioni

Emitted radiation and geometry

Articolo
Data di Pubblicazione:
2020
Abstract:
In conformal N = 2 Super Yang-Mills theory, the energy emitted by an accelerated heavy particle is computed by the one-point function of the stress tensor operator in the presence of a Wilson line. In this paper, we consider the theory on the ellipsoid and we prove a conjectured relation between the stress tensor one-point function and the first order expansion of the Wilson loop expectation value in the squashing parameter. To do this, we analyze the behavior of the Wilson loop for a small deformation of the background geometry and, at first order in the deformation, we fix the kinematics using defect CFT constraints. In the final part of the paper, we analyze the consequences of our results for the weak coupling perturbative expansion. In particular, comparing the weakly coupled matrix model with the ordinary Feynman diagram expansion, we find a natural transcendentality driven organization for the latter.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Extended Supersymmetry, Supersymmetric Gauge Theory, Conformal Field Theory, Wilson, ’t Hooft and Polyakov loops
Elenco autori:
L. Bianchi, M. Billo', F. Galvagno, A. Lerda
Autori di Ateneo:
BIANCHI Lorenzo
BILLO' Marco
Link alla scheda completa:
https://iris.unito.it/handle/2318/1727667
Link al Full Text:
https://iris.unito.it/retrieve/handle/2318/1727667/577331/Bianchi2020_Article_EmittedRadiationAndGeometry.pdf
Pubblicato in:
JOURNAL OF HIGH ENERGY PHYSICS
Journal
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URL

https://link.springer.com/article/10.1007/JHEP01(2020)075
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