Cargando…

Relativistic impulse approximation in the atomic ionization process induced by millicharged particles

The millicharged particle has become an attractive topic to probe physics beyond the Standard Model. In direct detection experiments, the parameter space of millicharged particles can be constrained from the atomic ionization process. In this work, we develop the relativistic impulse approximation (...

Descripción completa

Detalles Bibliográficos
Autores principales: Qiao, Chen-Kai, Lin, Shin-Ted, Chi, Hsin-Chang, Jia, Hai-Tao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7980100/
https://www.ncbi.nlm.nih.gov/pubmed/33776409
http://dx.doi.org/10.1007/JHEP03(2021)184
_version_ 1783667383803576320
author Qiao, Chen-Kai
Lin, Shin-Ted
Chi, Hsin-Chang
Jia, Hai-Tao
author_facet Qiao, Chen-Kai
Lin, Shin-Ted
Chi, Hsin-Chang
Jia, Hai-Tao
author_sort Qiao, Chen-Kai
collection PubMed
description The millicharged particle has become an attractive topic to probe physics beyond the Standard Model. In direct detection experiments, the parameter space of millicharged particles can be constrained from the atomic ionization process. In this work, we develop the relativistic impulse approximation (RIA) approach, which can duel with atomic many-body effects effectively, in the atomic ionization process induced by millicharged particles. The formulation of RIA in the atomic ionization induced by millicharged particles is derived, and the numerical calculations are obtained and compared with those from free electron approximation and equivalent photon approximation. Concretely, the atomic ionizations induced by mllicharged dark matter particles and millicharged neutrinos in high-purity germanium (HPGe) and liquid xenon (LXe) detectors are carefully studied in this work. The differential cross sections, reaction event rates in HPGe and LXe detectors, and detecting sensitivities on dark matter particle and neutrino millicharge in next-generation HPGe and LXe based experiments are estimated and calculated to give a comprehensive study. Our results suggested that the next-generation experiments would improve 2-3 orders of magnitude on dark matter particle millicharge δ(χ) than the current best experimental bounds in direct detection experiments. Furthermore, the next-generation experiments would also improve 2-3 times on neutrino millicharge δ(ν) than the current experimental bounds.
format Online
Article
Text
id pubmed-7980100
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher Springer Berlin Heidelberg
record_format MEDLINE/PubMed
spelling pubmed-79801002021-03-23 Relativistic impulse approximation in the atomic ionization process induced by millicharged particles Qiao, Chen-Kai Lin, Shin-Ted Chi, Hsin-Chang Jia, Hai-Tao J High Energy Phys Regular Article - Theoretical Physics The millicharged particle has become an attractive topic to probe physics beyond the Standard Model. In direct detection experiments, the parameter space of millicharged particles can be constrained from the atomic ionization process. In this work, we develop the relativistic impulse approximation (RIA) approach, which can duel with atomic many-body effects effectively, in the atomic ionization process induced by millicharged particles. The formulation of RIA in the atomic ionization induced by millicharged particles is derived, and the numerical calculations are obtained and compared with those from free electron approximation and equivalent photon approximation. Concretely, the atomic ionizations induced by mllicharged dark matter particles and millicharged neutrinos in high-purity germanium (HPGe) and liquid xenon (LXe) detectors are carefully studied in this work. The differential cross sections, reaction event rates in HPGe and LXe detectors, and detecting sensitivities on dark matter particle and neutrino millicharge in next-generation HPGe and LXe based experiments are estimated and calculated to give a comprehensive study. Our results suggested that the next-generation experiments would improve 2-3 orders of magnitude on dark matter particle millicharge δ(χ) than the current best experimental bounds in direct detection experiments. Furthermore, the next-generation experiments would also improve 2-3 times on neutrino millicharge δ(ν) than the current experimental bounds. Springer Berlin Heidelberg 2021-03-19 2021 /pmc/articles/PMC7980100/ /pubmed/33776409 http://dx.doi.org/10.1007/JHEP03(2021)184 Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) ), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Regular Article - Theoretical Physics
Qiao, Chen-Kai
Lin, Shin-Ted
Chi, Hsin-Chang
Jia, Hai-Tao
Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title_full Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title_fullStr Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title_full_unstemmed Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title_short Relativistic impulse approximation in the atomic ionization process induced by millicharged particles
title_sort relativistic impulse approximation in the atomic ionization process induced by millicharged particles
topic Regular Article - Theoretical Physics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7980100/
https://www.ncbi.nlm.nih.gov/pubmed/33776409
http://dx.doi.org/10.1007/JHEP03(2021)184
work_keys_str_mv AT qiaochenkai relativisticimpulseapproximationintheatomicionizationprocessinducedbymillichargedparticles
AT linshinted relativisticimpulseapproximationintheatomicionizationprocessinducedbymillichargedparticles
AT chihsinchang relativisticimpulseapproximationintheatomicionizationprocessinducedbymillichargedparticles
AT jiahaitao relativisticimpulseapproximationintheatomicionizationprocessinducedbymillichargedparticles