Journal
PHYSICAL REVIEW A
Volume 79, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.062514
Keywords
atom-photon collisions; autoionisation; helium neutral atoms; resonant states; wave functions
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Funding
- National Science Council of Taiwan, Republic of China
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We have made an investigation on the 2s(2) S-1(e) resonances in helium (He) in exponential cosine-screened Coulomb potentials (ECSCP). Highly correlated wave functions are used to take into account of the correlation effect of the charged particles. Resonance energies and widths for the doubly excited He in ECSCP are determined using the stabilization method by calculating the density of the resonance states. Results for resonance energies and widths are reported for the screening parameter in the range 0.0-0.275.
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