Category: Atomic physics
Laser polarization affects relativistic electron-impact scattering
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Theoretical study derives scattering cross sections for electron-hydrogen collisions in dual orthogonally polarized laser fields, confirming polarization effects and Kroll-Watson sum rule validity.
Atomic hydrogen test agrees with Standard Model prediction
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Ultra-precise measurement of hydrogen’s 2S-6P transition resolves conflicting proton radius values and tests quantum electrodynamics to 0.7 parts per trillion, validating the Standard Model.
Te atomic data modeled for kilonova spectral studies
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Comprehensive R-matrix atomic data for tellurium ions improves kilonova spectral modeling, identifying Te iv contributions to AT2017gfo emission features and advancing neutron star merger.
Calcium isotope selectivity was increased with polarized resonance ionization
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Selective resonance ionization technique using angular momentum selection rules and polarized light enables isolation of rare calcium isotopes Ca-43 and Ca-41 while suppressing abundant Ca-40.
Interference effects can be neglected in muonic hydrogen laser transition estimates
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Study develops methodology to estimate interference effects on laser-induced transitions in muonic hydrogen multi-pass cells, showing such effects can be safely neglected under experimental conditions.
