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- W2269968850 abstract "We have carried out a comprehensive study of electron impact on the open-chain ${mathrm{S}}_{3}$ isomer by using the $R$-matrix method. Elastic (integrated and differential), momentum-transfer, excitation, and ionization cross sections, along with effective collision frequency over a wide electron temperature range (500--30 000 K) have been presented. The target states are represented by including correlations via a configuration interaction technique. The results of the static-exchange, correlated 1-state, and 24-state close-coupling approximations are presented. Our study has detected a shape resonance, six core-excited shape resonances, and one Feshbach resonance in the $24$-state model. We detect a stable bound state of ${mathrm{S}}_{3}^{ensuremath{-}}$ of ${}^{2}{B}_{1}$ symmetry having a configuration $dots{}11{a}_{1}^{2},dots{}3{b}_{1}^{2}4{b}_{1},dots{}8{b}_{2}^{2},dots{}2{a}_{2}^{2}$, with a vertical electronic affinity value of 2.15 eV, and a ionization potential value of 9.77 eV, which are in good agreement with the experimental values of $2.093ifmmodepmelsetextpmfi{}0.025$ and $9.68ifmmodepmelsetextpmfi{}0.03$ eV, respectively. The ionization cross sections are calculated using the binary-encounter-Bethe model in which Hartree-Fock molecular orbitals at a self-consistent level are used to calculate kinetic and binding energies of the occupied molecular orbitals. We have used partial waves up to $l=4$ to represent continuum electron in our $R$-matrix method. A Born top-up procedure is invoked to account for the contribution of partial waves higher than $l=4$ to obtain converged cross sections." @default.
- W2269968850 created "2016-06-24" @default.
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- W2269968850 date "2011-06-17" @default.
- W2269968850 modified "2023-10-09" @default.
- W2269968850 title "Electron-impact study of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mi mathvariant=normal>S</mml:mi><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>using the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi>R</mml:mi></mml:mrow></mml:math>-matrix method" @default.
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- W2269968850 doi "https://doi.org/10.1103/physreva.83.062707" @default.
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