Electron–positron plasma in BBN: Damped-dynamic screening

Christopher Grayson; Cheng Tao Yang; Martin Formanek; Johann Rafelski

doi:10.1016/j.aop.2023.169453

Electron–positron plasma in BBN: Damped-dynamic screening

Christopher Grayson, Cheng Tao Yang, Martin Formanek, Johann Rafelski

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We characterize in detail the dense e⁻e⁺γ plasma present during the Big-Bang Nucleosynthesis (BBN) and explore how it is perturbed electromagnetically by “impurities, i.e., spatially dispersed protons and light nuclei undergoing thermal motion. The internuclear electromagnetic screened potential is obtained (analytically) using the linear response approach, allowing for the dynamic motion of the electromagnetic field sources and the damping effects due to plasma component scattering. We discuss the limits of the linear response method and suggest additional work needed to improve BBN reaction rates in the primordial Universe. Our theoretical methods describing the potential between charged dust particles align with previous studies on planetary and space dusty plasma and could have a significant impact on the interpretation of standard cosmological model results.

Original language	English (US)
Article number	169453
Journal	Annals of Physics
Volume	458
DOIs	https://doi.org/10.1016/j.aop.2023.169453
State	Published - Nov 2023

Keywords

Big Bang Nucleosynthesis
Damped dynamic screening
Early universe
Linear response
Nonlinear response
QED plasma

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/j.aop.2023.169453

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@article{ce37a9f584e34b2d9bfcaf5a58ee354a,

title = "Electron–positron plasma in BBN: Damped-dynamic screening",

abstract = "We characterize in detail the dense e−e+γ plasma present during the Big-Bang Nucleosynthesis (BBN) and explore how it is perturbed electromagnetically by “impurities, i.e., spatially dispersed protons and light nuclei undergoing thermal motion. The internuclear electromagnetic screened potential is obtained (analytically) using the linear response approach, allowing for the dynamic motion of the electromagnetic field sources and the damping effects due to plasma component scattering. We discuss the limits of the linear response method and suggest additional work needed to improve BBN reaction rates in the primordial Universe. Our theoretical methods describing the potential between charged dust particles align with previous studies on planetary and space dusty plasma and could have a significant impact on the interpretation of standard cosmological model results.",

keywords = "Big Bang Nucleosynthesis, Damped dynamic screening, Early universe, Linear response, Nonlinear response, QED plasma",

author = "Christopher Grayson and Yang, {Cheng Tao} and Martin Formanek and Johann Rafelski",

note = "Publisher Copyright: {\textcopyright} 2023 Elsevier Inc.",

year = "2023",

month = nov,

doi = "10.1016/j.aop.2023.169453",

language = "English (US)",

volume = "458",

journal = "Annals of Physics",

issn = "0003-4916",

publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Electron–positron plasma in BBN

T2 - Damped-dynamic screening

AU - Grayson, Christopher

AU - Yang, Cheng Tao

AU - Formanek, Martin

AU - Rafelski, Johann

PY - 2023/11

Y1 - 2023/11

N2 - We characterize in detail the dense e−e+γ plasma present during the Big-Bang Nucleosynthesis (BBN) and explore how it is perturbed electromagnetically by “impurities, i.e., spatially dispersed protons and light nuclei undergoing thermal motion. The internuclear electromagnetic screened potential is obtained (analytically) using the linear response approach, allowing for the dynamic motion of the electromagnetic field sources and the damping effects due to plasma component scattering. We discuss the limits of the linear response method and suggest additional work needed to improve BBN reaction rates in the primordial Universe. Our theoretical methods describing the potential between charged dust particles align with previous studies on planetary and space dusty plasma and could have a significant impact on the interpretation of standard cosmological model results.

AB - We characterize in detail the dense e−e+γ plasma present during the Big-Bang Nucleosynthesis (BBN) and explore how it is perturbed electromagnetically by “impurities, i.e., spatially dispersed protons and light nuclei undergoing thermal motion. The internuclear electromagnetic screened potential is obtained (analytically) using the linear response approach, allowing for the dynamic motion of the electromagnetic field sources and the damping effects due to plasma component scattering. We discuss the limits of the linear response method and suggest additional work needed to improve BBN reaction rates in the primordial Universe. Our theoretical methods describing the potential between charged dust particles align with previous studies on planetary and space dusty plasma and could have a significant impact on the interpretation of standard cosmological model results.

KW - Big Bang Nucleosynthesis

KW - Damped dynamic screening

KW - Early universe

KW - Linear response

KW - Nonlinear response

KW - QED plasma

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DO - 10.1016/j.aop.2023.169453

M3 - Article

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VL - 458

JO - Annals of Physics

JF - Annals of Physics

M1 - 169453

ER -

Electron–positron plasma in BBN: Damped-dynamic screening

Abstract

Keywords

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