AI Article Synopsis
- - The study investigates how Mg atoms are generated from reactions between Mg^{+} and D^{-} at low collision energies (around 59 meV) using a specific experimental method.
- - The results show significant differences when compared to previous full-quantum theories, indicating that past calculations have underestimated the total reaction rate by nearly double in low-energy scenarios.
- - The researchers suggest that using asymptotic model calculations provides more accurate results and advocate for applying this approach to study more complicated systems, which is important for understanding stellar conditions.
Article Abstract
We present experimental final-state distributions for Mg atoms formed in Mg^{+}+D^{-} mutual neutralization reactions at center-of-mass collision energies of 59±12 meV by using the merged-beams method. Comparisons with available full-quantum results reveal large discrepancies and a previously underestimated total rate coefficient by up to a factor of 2 in the 0-1 eV (<10^{4} K) regime. Asymptotic model calculations are shown to describe the process much better and we recommend applying this method to more complex iron group systems; data that is of urgent need in stellar spectral modeling.
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| http://dx.doi.org/10.1103/PhysRevLett.128.033401 | DOI Listing |
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