Tag: Atomic and Molecular 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.
True muonium production in J/ψ radiative decay may be detectable
True muonium production via J/psi radiative decay at electron-positron colliders offers experimental pathway to confirm QED prediction of muon-antimuon bound states.
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.
Accurate rovibrational levels for He2 a3Σu+ state match spectroscopy
High-precision rovibrational computations for He2 a 3Σu+ state incorporating relativistic, QED, and nonadiabatic corrections with sub-ppm potential energy curve accuracy.
Low-energy electrons selectively cleaved DNA bonds in films
Study reveals energy-dependent selective bond cleavage in DNA films exposed to low-energy electrons using XPS analysis, showing preferential damage to N-glycosidic and sugar-phosphate bonds.
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.
First ab initio nuclear Schiff moment calculated for 19F
First ab initio nuclear calculation of fluorine-19 Schiff moment reveals new constraints on fundamental symmetry violations through precision molecular spectroscopy measurements.
