Compton Scattering Energy Spectrum for Si and Ge Systems

Abstract

In the present work, we study the atomic Compton Scattering which could have great impacts on dark matter direct detection experiments. We give a quantitative analysis of the Compton scattering energy spectrum for Si and Ge atomic systems. The theoretical results on Compton scattering are calculated within the frameworks of free electron approximation (FEA) and relativistic impulse approximation (RIA). The low-energy transfer and near photoionization threshold regions are especially considered in this work. In RIA calculation, to obtain the atomic ground states, we adopt an \emph{ab initio} calculation in the fully relativistic Dirac-Fock theory.

arXiv comment10 pages, 6 figures, 1 tables; V2: Major Revision; V3 Published Version

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Cited by in corpus (4)

• An Overview of the Compton Scattering Calculation
• New Limits on Coherent Neutrino Nucleus Elastic Scattering Cross Section at the Kuo-Sheng Reactor Neutrino Laboratory
• Impact of Dark Compton Scattering on Direct Dark Matter Absorption Searches
• Measurement of the Compton scattering in germanium with a p-type point-contact germanium detector for dark matter detection