Results 31 to 40 of about 9,158,519 (175)

Nonperturbative decoupling and effective field theory [PDF]

Physical Review D, 1995
12 pages no figures.
openaire   +3 more sources

Hawking radiation of extended objects

Journal of High Energy Physics, 2020
We compute the effects on the temperature and precise spectrum of Hawking radiation from a Schwarzschild black hole when the emitted object is taken to be spatially extended.
George Johnson, John March-Russell
doaj   +1 more source

Gentle introduction to rigorous Renormalization Group: a worked fermionic example

Journal of High Energy Physics, 2021
Much of our understanding of critical phenomena is based on the notion of Renormalization Group (RG), but the actual determination of its fixed points is usually based on approximations and truncations, and predictions of physical quantities are often of
Alessandro Giuliani, Vieri Mastropietro, Slava Rychkov   +2 more
doaj   +1 more source

Nonperturbative effects in the nonrelativistic hadron scattering [PDF]

Physics Letters B, 1997
be published in Phys.Lett ...
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Effects of nonperturbative improvement in quenched hadron spectroscopy [PDF]

Nuclear Physics B - Proceedings Supplements, 1999
We discuss a comparative analysis of unimproved and nonperturbatively improved quenched hadron spectroscopy, on a set of 104 gauge configurations, at beta=6.2. We also present here our results for meson decay constants, including the constants f_D and f_Ds in the charm-quark region.
Cucchieri, Attilio, Mendes, Tereza, Petronzio, Roberto   +2 more
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Quantum unitary dynamics of a charged fermionic field and Schwinger effect

Journal of High Energy Physics, 2021
In quantum field theory, particle creation occurs, in general, when an intense external field, such as an electromagnetic field, breaks time translational invariance. This leads to an ambiguity in the definition of the vacuum state.
Álvaro Álvarez-Domínguez, Luis J. Garay, David García-Heredia, Mercedes Martín-Benito   +3 more
doaj   +1 more source

Hadronic corrections to μ-e scattering at NNLO with space-like data

Journal of High Energy Physics, 2019
The Standard Model prediction for μ-e scattering at Next-to-Next-to-Leading Order (NNLO) contains non-perturbative QCD contributions given by diagrams with a hadronic vacuum polarization insertion in the photon propagator.
Matteo Fael
doaj   +1 more source

Nonperturbative QED effective action at finite temperature [PDF]

Physical Review D, 2010
RevTex4, 6pages, no figure; replaced by the version to be published in Phys.
Kim, Sang Pyo, Lee, Hyun Kyu, Yoon, Yongsung   +2 more
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The Exact WKB analysis and the Stokes phenomena of the Unruh effect and Hawking radiation

Journal of High Energy Physics, 2022
The physical observables of quantum theory can be described by perturbation theory, which is often given by diverging power series. This divergence is connected to the existence of non-perturbative phenomena, where resurgence allows us to study this ...
Seishi Enomoto, Tomohiro Matsuda
doaj   +1 more source

B-hadron production in NNLO QCD: application to LHC t t ¯ $$ \overline{t} $$ events with leptonic decays

Journal of High Energy Physics, 2021
We calculate, for the first time, the NNLO QCD corrections to identified heavy hadron production at hadron colliders. The calculation is based on a flexible numeric framework which allows the calculation of any distribution of a single identified heavy ...
Michał Czakon, Terry Generet, Alexander Mitov, Rene Poncelet   +3 more
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