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- W2074018223 abstract "A new variational impact parameter approach to the process of direct electronic excitation of atoms by impact of ions at intermediate velocities regimes was shown to be very successful in predicting the saturation of cross sections when the projectile charge is increased [1–4]. In our approach, this new procedure is based on the fractional form of the Schwinger variational principle and applied to study K‐shell excitation of Ca18+ (1s2) ions impinging at 8.6 MeV/amu on various gases (H2, He, N2, O2, Ne, Ar, Kr, Xe). The excitation cross sections are compared with another theoretical approaches, like Born approximation. All obtained results stay in good agreement with experimental data of Xiang‐Yuan Xu et al. [5]." @default.
- W2074018223 created "2016-06-24" @default.
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- W2074018223 date "2011-01-01" @default.
- W2074018223 modified "2023-10-12" @default.
- W2074018223 title "NEW OF SCHWINGER VARIATIONAL PRINCIPLE FOR K-SHELL EXCITATION OF CA[sup 18+] (1S[sup 2]) IONS BY IMPACT OF VARIOUS ATOMS AT 8.6 MeV∕amu" @default.
- W2074018223 doi "https://doi.org/10.1063/1.3638514" @default.
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