$$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18

Abstract The evolution of inflationary primordial gravitational waves with the expansion of the universe is studied while taking into account the $$e^+e^-$$ e + e - annihilation which leads to step correction in the spectrum of primordial gravitational waves which is $$\sim 10\%$$ ∼ 10 % in the ampl...

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Main Author: N. Malsawmtluangi
Format: Article
Language:English
Published: SpringerOpen 2022-11-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-022-10978-7
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author N. Malsawmtluangi
author_facet N. Malsawmtluangi
author_sort N. Malsawmtluangi
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description Abstract The evolution of inflationary primordial gravitational waves with the expansion of the universe is studied while taking into account the $$e^+e^-$$ e + e - annihilation which leads to step correction in the spectrum of primordial gravitational waves which is $$\sim 10\%$$ ∼ 10 % in the amplitude and $$\sim 25\%$$ ∼ 25 % in the energy density. The amplitudes and energy densities are studied for the $$\alpha $$ α -attractor inflation models which are in agreement with the recent BICEP/Keck and Planck 2018 joint result. The energy densities are well within the big bang nucleosynthesis bound, but the spectra for these models are very much below the detection range of the currently operating and upcoming detectors.
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spelling doaj.art-5a7bb9f521af46c5864fddd135ce95f82022-12-22T03:36:52ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522022-11-01821111010.1140/epjc/s10052-022-10978-7$$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18N. Malsawmtluangi0Department of Physics, Government Kolasib CollegeAbstract The evolution of inflationary primordial gravitational waves with the expansion of the universe is studied while taking into account the $$e^+e^-$$ e + e - annihilation which leads to step correction in the spectrum of primordial gravitational waves which is $$\sim 10\%$$ ∼ 10 % in the amplitude and $$\sim 25\%$$ ∼ 25 % in the energy density. The amplitudes and energy densities are studied for the $$\alpha $$ α -attractor inflation models which are in agreement with the recent BICEP/Keck and Planck 2018 joint result. The energy densities are well within the big bang nucleosynthesis bound, but the spectra for these models are very much below the detection range of the currently operating and upcoming detectors.https://doi.org/10.1140/epjc/s10052-022-10978-7
spellingShingle N. Malsawmtluangi
$$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
European Physical Journal C: Particles and Fields
title $$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
title_full $$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
title_fullStr $$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
title_full_unstemmed $$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
title_short $$e^+e^-$$ e + e - annihilation on the stochastic background of primordial gravitational waves with BKP18
title_sort e e e e annihilation on the stochastic background of primordial gravitational waves with bkp18
url https://doi.org/10.1140/epjc/s10052-022-10978-7
work_keys_str_mv AT nmalsawmtluangi eeeeannihilationonthestochasticbackgroundofprimordialgravitationalwaveswithbkp18