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<p>The Migdal transition probabilities for dark matter scattering are compared to the total single-electron inelastic cross sections of electron-atom scattering for isolated Ar and Xe. The comparison is done by expressing the electron-atom scattering cross section by connecting the Migdal probability. The resultant differences are around 30 % for Ar and 80 % for Xe in ~ 1 keV of incoming electron energy. The transition is dominated from the 3<i>p</i> shell electrons for Ar. For Xe, 5<i>p</i> states dominate the contribution, but, 4<i>d</i> states give ∼ 40 % contribution at 1 keV.</p>

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Comparison of the Migdal transition probabilities in electron-atom inelastic cross sections

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  • 发表日期：

    2025年10月15日

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  • Wakutaka Nakano

摘要

The Migdal transition probabilities for dark matter scattering are compared to the total single-electron inelastic cross sections of electron-atom scattering for isolated Ar and Xe. The comparison is done by expressing the electron-atom scattering cross section by connecting the Migdal probability. The resultant differences are around 30 % for Ar and 80 % for Xe in ~ 1 keV of incoming electron energy. The transition is dominated from the 3p shell electrons for Ar. For Xe, 5p states dominate the contribution, but, 4d states give ∼ 40 % contribution at 1 keV.