Results 51 to 60 of about 623,645 (240)

Unitary quantization of a scalar charged field and Schwinger effect

Journal of High Energy Physics, 2020
Quantum field theory in curved spacetimes suffers in general from an infinite ambiguity in the choice of Fock representation and associated vacuum. In cosmological backgrounds, the requirement of a unitary implementation of the field dynamics in the ...
Luis J. Garay, Alberto García Martín-Caro, Mercedes Martín-Benito   +2 more
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
doaj   +1 more source

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

Short distance non-perturbative effects of large distance modified gravity [PDF]

, 2005
In a model of large distance modified gravity we compare the nonperturbative Schwarzschild solution of hep-th/0407049 to approximate solutions obtained previously.
Alberto Iglesias, Alcaniz, Antoniadis, Deffayet, Deffayet, Deffayet, Deffayet, Deffayet, Deffayet, Dick, Dvali, Dvali, Dvali, Dvali, Gabadadze, Gabadadze, Gabadadze, Gibbons, Gregory Gabadadze, Gruzinov, Iorio, Iorio, Ishak, Jain, Kaloper, Kaloper, Kaloper, Kaloper, Kiritsis, Knox, Kohlprath, Kohlprath, Kolanovic, Koyama, Linder, Lue, Lue, Lue, Lue, Luty, Middleton, Middleton, Nicolis, Porrati, Porrati, Rubakov, Smolyakov, Song, Tanaka, Vainshtein, van Dam, Williams, Williams, Zakharov   +53 more
core   +2 more sources

States of low energy in the Schwinger effect

Journal of High Energy Physics, 2023
States of low energy in cosmology minimise the energy density when smeared in a chosen time interval. We extend such construction to generic homogeneous (possibly anisotropic) particle creation settings.
Álvaro Álvarez-Domínguez, Luis J. Garay, Mercedes Martín-Benito, Rita B. Neves   +3 more
doaj   +1 more source

Final State Interactions in WW Production [PDF]

, 1997
It is shown that colour transparency causes nonperturbative colour-singlet final-state interactions to have a negligible effect on the production rate and the dijet mass spectra in $e^+e^-\to WW$.
Donnachie, A, Landshoff, P V
core   +2 more sources

Nonperturbative effects in gluodynamics at T ≥ Tc

Physics Letters B, 1995
Abstract Contributions to gluon thermodynamics at temperature T > 0 due to a non-perturbative background field are calculated. The free energy is written as a double series in 1 N c and the strong coupling gs. The leading order contribution due to gluon loops in the nonperturbative background field contains explicitly the expectation ...
Yu.A Simonov, Hans-Jürgen Pirner, H. G. Dosch   +2 more
openaire   +2 more sources

Dynamical $F(R)$ gravities

, 2012
It is offered that $F(R)-$modified gravities can be considered as nonperturbative quantum effects arising from Einstein gravity. It is assumed that nonperturbative quantum effects gives rise to the fact that the connection becomes incompatible with the ...
Buchbinder I. L., Heisenberg W., VLADIMIR DZHUNUSHALIEV   +2 more
core   +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 interaction effects in the thermodynamics of disordered wires [PDF]

Physical Review B, 2007
18 ...
Anton Andreev, Dmytro Pesin
openaire   +3 more sources