Strong relativistic effects on dielectronic recombination of metastable <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Li</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math></span> ions

Li-Bo Zhao; Toshizo Shirai

doi:10.1103/PhysRevA.63.010703

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Strong relativistic effects on dielectronic recombination of metastable ${Li}^{+}$ ions

Li-Bo Zhao and Toshizo Shirai

Japan Atomic Energy Research Institute, Tokai-mura, Ibaraki 319-1195, Japan

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Phys. Rev. A 63, 010703(R) – Published 11 December, 2000

DOI: https://doi.org/10.1103/PhysRevA.63.010703

Abstract

Dielectronic recombination (DR) of ${Li}^{+}$ ions in the metastable $1 s 2 s^{3} S$ state has been calculated by using the close-coupling R-matrix method and perturbation theory, and compared with the high-resolution experiment. Good agreement has been shown. The occurrence of the experimental double peak structure at energies of 0.1–0.2 eV can be surprisingly attributed to relativistic effects. A very strong radiation damping effect on the resonances in the second peak position was discovered. Furthermore, in the ${1 s 2 p (}^{1} P) n l$ $(n = 5 - 7)$ resonance energy region, our calculations have displayed that the contribution to DR from high-angular-momentum $(l > 3)$ configurations is very small. This point is markedly different from the result of Saghiri et al. [Phys. Rev. A 60, R3350 (1999)].

References (23)

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[c1] P. Zimmerer, N. Grun, and W. Scheid, Phys. Lett. A 148, 457 (1990).

[c2] M. Zimmermann, N. Grun, and W. Scheid, J. Phys. B 30, 5259 (1997).

[c3] T. W. Gorczyca and N. R. Badnell, Phys. Rev. Lett. 79, 2783 (1997); J. Phys. B 29, L283 (1996).

[c4] J. Dubau and S. Volonte, Rep. Prog. Phys. 43, 199 (1980).

[c5] A. Müller and A. Wolf, Accelerator-Based Atomic Physics, Techniques and Applications, edited by J. C. Austin and S. M. Shafroth (AIP, Woodbury, NY, 1997), p. 197.

[c6] L. H. Andersen et al., Phys. Rev. Lett. 62, 2656 (1989); L. H. AndersenPhys. Rev. A 41, 1293 (1990); ibid. 45, 7868 (1992).

[c7] N. R. Badnell, M. S. Pindzola, and D. C. Griffin, Phys. Rev. A 41, 2422 (1990).

[c8] S. Schippers et al., J. Phys. B 31, 4873 (1998); S. SchippersPhys. Rev. A 59, 3092 (1999).

[c9] A. A. Saghiri et al., Phys. Rev. A 60, R3350 (1999).

[c10] P. C. W. Davies and M. J. Seaton, J. Phys. B 2, 757 (1969).

[c11] L. B. Zhao, A. Ichihara, and T. Shirai, Phys. Rev. A 62, 022706 (2000).

[c12] T. J. McIlrath and T. B. Lucatorto, Phys. Rev. Lett. 38, 1390 (1977).

[c13] L. M. Kiernan et al., J. Phys. B 29, L191 (1996).

[c14] K. T. Chung, Phys. Rev. Lett. 78, 1416 (1997).

[c15] M. K. Chen and K. T. Chung, Phys. Rev. A 49, 1675 (1994).

[c16] K. T. Chung, Phys. Rev. A 24, 1350 (1981).

[c17] O. Zatsarinny and C. F. Fischer, J. Phys. B 33, 313 (2000).

[c18] B. Jaskaólska and W. Woźnichi, Phys. Scr. 39, 230 (1989); ibid.39, 234 (1989).

[c19] D. K. McKenzie and G. W. F. Drake, Phys. Rev. A 44, R6973 (1991).

[c20] H. Cederquist and S. Mannervik, J. Phys. B 15, L807 (1982); Phys. Scr. 31, 79 (1985).

[c21] G. Kilgus et al., Phys. Rev. A 46, 5730 (1992).

[c22] F. Robicheaux et al., Phys. Rev. A 52, 1319 (1995).

[c23] Y. Zou, L. B. Zhao, and Q. Y. Fang, Phys. Rev. A 60, 4510 (1999).

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Strong relativistic effects on dielectronic recombination of metastable ${Li}^{+}$ ions

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Strong relativistic effects on dielectronic recombination of metastable Li+ ions

Abstract

References (23)

Strong relativistic effects on dielectronic recombination of metastable ${Li}^{+}$ ions