Results 41 to 50 of about 36,882 (207)

Tunnelling of charged particles from black holes

open access: yesJournal of High Energy Physics, 2020
We state and explain the total rate at which a charged non-rotating black hole emits charged particles, taking into account both Hawking radiation and Schwinger pair production simultaneously.
George Johnson
doaj   +1 more source

The axion quality problem: global symmetry breaking and wormholes

open access: yesJournal of High Energy Physics, 2021
Continuous global symmetries are expected to be broken by gravity, which can lead to important phenomenological consequences. A prime example is the threat that this poses to the viability of the Peccei-Quinn solution to the strong CP problem.
James Alvey, Miguel Escudero
doaj   +1 more source

Quantum-induced trans-Planckian energy near horizon

open access: yesJournal of High Energy Physics, 2018
We study the loop effects on the geometry and boundary conditions of several black hole spacetimes one of which is time-dependent and analyze the energy measured by an infalling observer near their horizons.
A. J. Nurmagambetov, I. Y. Park
doaj   +1 more source

Vacuum instability due to the creation of neutral fermion with anomalous magnetic moment by magnetic-field inhomogeneities

open access: yesJournal of High Energy Physics, 2021
We study neutral fermions pair creation with anomalous magnetic moment from the vacuum by time-independent magnetic-field inhomogeneity as an external background. We show that the problem is technically reduced to the problem of charged-particle creation
T. C. Adorno   +3 more
doaj   +1 more source

Nonperturbative effects in the nonrelativistic hadron scattering [PDF]

open access: yesPhysics Letters B, 1997
be published in Phys.Lett ...
openaire   +2 more sources

Final State Interactions in WW Production [PDF]

open access: yes, 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

Exploring the θ-vacuum structure in the functional renormalization group approach

open access: yesJournal of High Energy Physics, 2022
We investigate the θ-vacuum structure and the ’t Hooft anomaly at θ = π in a simple quantum mechanical system on S 1 to scrutinize the applicability of the functional renormalization group (fRG) approach.
Kenji Fukushima   +2 more
doaj   +1 more source

Topology in full QCD at high temperature: a multicanonical approach

open access: yesJournal of High Energy Physics, 2018
We investigate the topological properties of N f = 2 + 1 QCD with physical quark masses, at temperatures around 500 MeV. With the aim of obtaining a reliable sampling of topological modes in a regime where the fluctuations of the topological charge Q are
Claudio Bonati   +5 more
doaj   +1 more source

Nonperturbative QED effective action at finite temperature [PDF]

open access: yesPhysical Review D, 2010
RevTex4, 6pages, no figure; replaced by the version to be published in Phys.
Kim, Sang Pyo   +2 more
openaire   +2 more sources

Unitary quantization of a scalar charged field and Schwinger effect

open access: yesJournal 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   +2 more
doaj   +1 more source

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