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- W1997560476 abstract "Recently a study [J. K. Saha and T. K. Mukherjee, Phys. Rev. A 80, 022513 (2009)] on the doubly excited ${}^{3}{P}^{e}$ states of helium reports some resonance states that are not in conformity with previously published works [Y. K. Ho and A. K. Bhatia, Phys. Rev. A 47, 2628 (1993)]. Owing to discrepancies between the works, we investigate the resonance parameters (positions and widths) of the doubly excited Feshbach resonances of the ${}^{3}{P}^{e}$ symmetries associated with $N$ $=$ $3$, $4$, and $5$ He${}^{+}$ thresholds using a different choice of correlated wave functions in the framework of the complex-coordinate rotation method and the stabilization method. Resonance parameters below the $N=4$ and $N=5$ He${}^{+}$ thresholds obtained from the present calculations are not consistent with the results and discussions made in the recent work. Here we point out an error in assessment made by Saha and Mukherjee in an earlier work as well as the lack of numerical accuracy of the results for some high-lying doubly excited states reported by Saha and Mukherjee. The bound $2{p}^{2} {}^{3}{P}^{e}$ and $2p3p {}^{3}{P}^{e}$ state energies obtained from this calculation are consistent with the best reported results but not with the reported values of Saha and Mukherjee." @default.
- W1997560476 created "2016-06-24" @default.
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- W1997560476 date "2010-09-22" @default.
- W1997560476 modified "2023-10-16" @default.
- W1997560476 title "Comment on “Doubly excited bound and resonance (3Pe) states of helium”" @default.
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- W1997560476 doi "https://doi.org/10.1103/physreva.82.036501" @default.
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