Results 11 to 20 of about 417 (94)

Novel approaches to perturbative scattering amplitudes in gauge theory and gravity [PDF]

open access: yes, 2009
PhDScattering amplitudes of massless quanta play a crucial role in the calculation of cross sections for multi-jet production at hadron colliders. The framework provided by perturbative quantum field theory, based on Feynman diagrams, does not capture ...
Nasti, Adele
core   +4 more sources

Wilson loops in the Hamiltonian formalism

open access: yes, 2022
In a gauge theory, the gauge invariant Hilbert space is unchanged by the coupling to arbitrary local operators. In the presence of Wilson loops, though, the physical Hilbert space must be enlarged by adding test electric charges along the loop. I discuss
Pisarski, Robert D.
core   +1 more source

Wilson loops in circular quiver SCFTs at strong coupling

open access: yesJournal of High Energy Physics, 2021
We study circular BPS Wilson loops in the N $$ \mathcal{N} $$ = 2 superconformal n-node quiver theories at large N and strong ’t Hooft coupling by using localization.
Hao Ouyang
doaj   +1 more source

Large-size expansion for triangular Wilson loops in confining gauge theories

open access: yesJournal of High Energy Physics, 2020
The asymptotic behavior of Wilson loops in the large-size limit (L → ∞) in confining gauge theories with area law is controlled by effective string theory (EST).
P.V. Pobylitsa
doaj   +1 more source

Large charges on the Wilson loop in N $$ \mathcal{N} $$ = 4 SYM. Part II. Quantum fluctuations, OPE, and spectral curve

open access: yesJournal of High Energy Physics, 2022
We continue our study of large charge limits of the defect CFT defined by the half-BPS Wilson loop in planar N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory.
Simone Giombi   +2 more
doaj   +1 more source

Loop operators in three-dimensional N $$ \mathcal{N} $$ = 2 fishnet theories

open access: yesJournal of High Energy Physics, 2020
In this work, we study the line and loop operators in three-dimensional N $$ \mathcal{N} $$ = 2 fishnet theories in detail. We construct the straight line and circular loop operators which are at least classically half-BPS.
Jun-bao Wu, Jia Tian, Bin Chen
doaj   +1 more source

Hamiltonian Approach to QCD in Coulomb Gauge: A Survey of Recent Results

open access: yesAdvances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018
We report on recent results obtained within the Hamiltonian approach to QCD in Coulomb gauge. Furthermore this approach is compared to recent lattice data, which were obtained by an alternative gauge‐fixing method and which show an improved agreement with the continuum results. By relating the Gribov confinement scenario to the center vortex picture of
H. Reinhardt   +8 more
wiley   +1 more source

Simplifying instanton corrections to N=4 SYM correlators [PDF]

open access: yes, 2014
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are ...
Bianchi, M   +11 more
core   +1 more source

Dreibein as Prepotential for Three‐Dimensional Yang‐Mills Theory

open access: yesAdvances in High Energy Physics, Volume 2017, Issue 1, 2017., 2017
We advocate and develop the use of the dreibein (and the metric) as prepotential for three‐dimensional SO(3) Yang‐Mills theory. Since the dreibein transforms homogeneously under gauge transformation, the metric is gauge invariant. For a generic gauge potential, there is a unique dreibein on fixing the boundary condition.
Indrajit Mitra   +2 more
wiley   +1 more source

Precision holography for N=2∗ $$ \mathcal{N}={2}^{\ast } $$ on S 4 from type IIB supergravity

open access: yesJournal of High Energy Physics, 2018
We find a new supersymmetric solution of type IIB supergravity which is holographically dual to the planar limit of the four-dimensional N=2∗ $$ \mathcal{N}={2}^{\ast } $$ supersymmetric Yang-Mills theory on S 4.
Nikolay Bobev   +2 more
doaj   +1 more source

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