Results 1 to 10 of about 259,157 (249)

Field amplification and particle production by parametric resonance during inflation and reheating [PDF]

open access: greenPhysics of the Dark Universe, 2018
6 pages, 3 figures; v2: some typos are corrected, added two references; v3: 10 pages, some discussions are largely expanded, version to appear at Physics of the Dark ...
Tao Zhu, Qiang Wu, Anzhong Wang
semanticscholar   +7 more sources

Resonance enhancement of particle production during reheating [PDF]

open access: greenClassical and Quantum Gravity, 2001
We found a consistent equation of reheating after inflation, which shows that for small quantum fluctuations the frequencies of resonance are slighted different from the standard ones. Quantum interference is taken into account and we found that at large fluctuations the process mimics very well the usual parametric resonance but proceed in a different
G. Palma   +3 more
semanticscholar   +6 more sources

Particles Production in Neutron Stars by Means of the Parametric Resonance Mechanism [PDF]

open access: green, 2008
Using a Lagrangean toy model the coupling of a negative pion superconducting field and the electromagnetic field of the star is analyzed. A numerical study of particles produced in the neutron star medium by means of the well-known parametric resonance phenomenon is performed.
S. D. Campos
openalex   +3 more sources

Measurement of the inclusive production of neutral pions and charged particles on the Z0 resonance [PDF]

open access: bronzePhysics Letters B, 1991
Abstract We present a study of the inclusive production of neutral pions and charged particles from 112 000 hadronic Z 0 decays. The measured inclusive momentum distributions can be reproduced by parton shower Monte Carlo programs and also by an analytical QCD calculation.
B. Adeva   +99 more
  +9 more sources

Nonperturbative evaluation of quantum particle production in parametric resonance enhanced by noise [PDF]

open access: green, 2016
Numerical studies are reported to support the idea to explain the particle production in late inflationary era based on the parametric resonance with a noise effect. Two nonperturbative renormalization group formulations are used to numerically calculate the time evolution of particle numbers.
Asako Murakami, Haruhiko Terao
openalex   +3 more sources

Resonance production in high energy collisions from small to big systems [PDF]

open access: yesEPJ Web of Conferences, 2018
The aim of this paper is to understand resonance production (and more generally particle production) for different collision systems, namely proton-proton (pp), proton-nucleus (pA), and nucleus-nucleus (AA) scattering at the LHC.
Werner K.   +9 more
doaj   +2 more sources

Particle production and equilibrium properties within a new hadron transport approach for heavy-ion collisions [PDF]

open access: yes, 2016
The microscopic description of heavy-ion reactions at low beam energies is achieved within hadronic transport approaches. In this article a new approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons) is introduced and applied to study ...
Attems, M.   +12 more
core   +2 more sources

Probing Planckian physics: resonant production of particles during inflation and features in the primordial power spectrum [PDF]

open access: yesPhysical Review D, 1999
The phenomenon of resonant production of particles {\it after} inflation has received much attention in the past few years. In a new application of resonant production of particles, we consider the effect of a resonance {\em during} inflation.
A. A. Grib   +55 more
core   +4 more sources

Tachyonic and parametric resonances for massive particle production in an intense scalar plane wave background

open access: hybridPhysical Review D
We investigate the stability of an intensive plane wave of a massless or light scalar field ϕ in a trilinear scalar model gϕχ2 due to the resonant production of massive χ particles in a perturbatively forbidden regime. We apply two methods. First, we solve the Heisenberg equation for the quantum amplitudes of the field χ in an external plane wave ...
NULL AUTHOR_ID
openalex   +3 more sources

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