Results 21 to 30 of about 11,120,519 (277)

Nonperturbative effects in a scalar supersymmetric theory

open access: yesPhysics Letters B, 1983
Abstract We show that the Parisi-Sourlas argument of dimensionality reduction by two in certain supersymmetric theories holds nonperturbatively, and that topological instanton configurations are important in three dimensions.
J. Cardy
semanticscholar   +3 more sources

Nonperturbative versus perturbative effects in generalized parton distributions [PDF]

open access: yesPhysical Review D, 2005
Generalized parton distributions (GPDs) are studied at the hadronic (nonperturbative) scale within different assumptions based on a relativistic constituent quark model. In particular, by means of a meson-cloud model we investigate the role of nonperturbative antiquark degrees of freedom and the valence quark contribution.
B. Pasquini   +2 more
openaire   +7 more sources

Nonperturbative effects and the large-order behavior of matrix models and topological strings [PDF]

open access: bronze, 2008
This work addresses nonperturbative effects in both matrix models and topological strings, and their relation with the large-order behavior of the 1/N expansion.
Marcos Mariño   +2 more
openalex   +3 more sources

Determination of HQET nonperturbative matrix elements with renormalon subtraction using Fourier transform [PDF]

open access: yesEPJ Web of Conferences, 2022
As higher order perturbative series are available, it is becoming necessary to include nonperturbative effects in QCD calculations using the OPE. In order to systematically determine nonperturbative effects and to incorporate them into theoretical ...
Takaura Hiromasa
doaj   +1 more source

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

open access: yesPhysical Review D, 2021
We investigate the nonperturbative structure of Jackiw-Teitelboim gravity at finite cutoff, as given by its proposed formulation in terms of a $T\bar{T}$-deformed Schwarzian quantum mechanics.
L. Griguolo   +3 more
semanticscholar   +1 more source

Nonperturbative infrared effects for light scalar fields in de Sitter space [PDF]

open access: green, 2012
We study the phi^4 scalar field theory in de Sitter space using the 2PI effective action formalism. This formalism enables us to investigate the nonperturbative quantum effects.
Takashi Arai
openalex   +3 more sources

Resurgence in Quantum Field Theory: Nonperturbative Effects in the Principal Chiral Model [PDF]

open access: greenPhysical Review Letters, 2014
Aleksey Cherman   +3 more
openalex   +2 more sources

Nonperturbative QCD vacuum effects in nonlocal quark dynamics [PDF]

open access: green, 2001
A straightforward calculation reveals the essentially nonlocal character of the leading heavy $Q\bar{Q}$ interaction arising from nonperturbative gluon field correlations in the model of a fluctuating QCD vacuum.
Ken Williams
openalex   +6 more sources

Nonperturbative Effects on Nucleation [PDF]

open access: yesPhysical Review Letters, 1996
Latex, 8 pages, 2 postscript figures, submitted to PRL. Also available at http://fnas08.fnal.gov/
Marcelo Gleiser, Andrew F. Heckler
openaire   +3 more sources

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