Results 61 to 70 of about 1,107 (89)

Electroweak vacuum stability in the Higgs-Dilaton theory

Journal of High Energy Physics, 2017
We study the stability of the Electroweak (EW) vacuum in a scale-invariant extension of the Standard Model and General Relativity, known as a Higgs-Dilaton theory.
A. Shkerin
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Dynamical generation of fermion mass in a scalar-fermion theory with λϕ 4 interaction

Journal of High Energy Physics
The effective potential for a scalar theory with λϕ 4 interaction, coupled to a massless fermion through Yukawa interaction is calculated by summing over infinite number of two particle irreducible (2PI) diagrams of two different types and a 2PI diagram ...
Somnath Majumder, Krishnendu Mukherjee
doaj   +1 more source

Tadpole diagrams in constant electromagnetic fields

Journal of High Energy Physics, 2017
We show how all possible one-particle reducible tadpole diagrams in constant electromagnetic fields can be constructed from one-particle irreducible constant-field diagrams.
Felix Karbstein
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Nonperturbative QED vacuum birefringence

Journal of High Energy Physics, 2017
In this paper we represent nonperturbative calculation for one-loop Quantum Electrodynamics (QED) vacuum birefringence in presence of strong magnetic field.
V.I. Denisov, E.E. Dolgaya, V.A. Sokolov
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All-multiplicity amplitudes in impulsive PP-waves from the worldline formalism

Journal of High Energy Physics
We use the worldline formalism to derive Bern-Kosower type Master Formulae for the tree-level scattering of a charged particle and an arbitrary number of photons on impulsive PP-waves, where the coupling of the PP-wave to matter is treated fully non ...
Patrick Copinger, James P. Edwards, Anton Ilderton, Karthik Rajeev   +3 more
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Complex eigenvalue instantons and the Fredholm determinant expansion in the Gross-Witten-Wadia model

Journal of High Energy Physics
We study the leading nonperturbative corrections to the strong-coupling (ungapped) phase of the Gross-Witten-Wadia (GWW) integral over unitary matrices, to one-loop order.
Dan Stefan Eniceicu, Raghu Mahajan, Chitraang Murdia   +2 more
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What can be measured asymptotically?

Journal of High Energy Physics
We consider asymptotic observables in quantum field theories in which the S-matrix makes sense. We argue that in addition to scattering amplitudes, a whole compendium of inclusive observables exists where the time-ordering is relaxed.
Simon Caron-Huot, Mathieu Giroux, Holmfridur S. Hannesdottir, Sebastian Mizera   +3 more
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Nonperturbative effects in triple-differential dijet and Z+jet production at the LHC

SciPost Physics
In comparisons of precision measurements at colliders to the most accurate predictions available in perturbative quantum chromodynamics (QCD), it is required to correct for nonperturbative effects.
Stefan Gieseke, Maximilian Horzela, Manjit Kaur, Dari Leonardi, Klaus Rabbertz, Aayushi Singla, Cedric Verstege
doaj   +1 more source

The non-perturbative topological string: from resurgence to wall-crossing of DT invariants

Journal of High Energy Physics
We study the resurgence structure of the topological string partition function, with an emphasis on the Borel analysis of the instanton amplitudes. To this end, we introduce a differential operator that implements the pointed alien derivative when acting
Simon Douaud, Amir-Kian Kashani-Poor
doaj   +1 more source

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Nonperturbative effects and resurgence in Jackiw-Teitelboim gravity at finite cutoff

Physical Review D, 2022
Rodolfo Panerai, Domenico Seminara, Luca Griguolo   +2 more
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