Absolute cross sections with polarization effects in Ne{sup {asterisk}}(2p{sup 5}3p)+He collisions: A detailed comparison between theory and experiment
- Laboratoire Aime Cotton, batiment 505 Campus dOrsay, 91405 Orsay Cedex (France)
- Laboratoire de Spectroscopie Atomique, ISMRA, Universite de Caen, boulevard du marechal Juin, 14034 Caen (France)
Quantal calculations are presented for intramultiplet mixing collisions of Ne{sup {asterisk}}(2p{sup 5}3p) with He({sup 1}S{sub 0}) in the 60{endash}1250 meV collision energy range. The coupled equations are solved in a diabatic representation where the coupling terms are obtained using the model potential calculations of Hennecart and Masnou-Seeuws [J. Phys. B {bold 18}, 657 (1985)] for the interaction of the Ne{sup {asterisk}} outer electron with the two cores and values fitted on the spectroscopic data of Dabrowski and Herzberg [Mol. Spectrosc. {bold 73}, 183 (1978)] for the core-core interaction. An extensive comparison with the experimental data of the Eindhoven group is presented for absolute polarized cross sections and anisotropy parameters. Very good agreement is obtained with thermal energy data of Manders {ital et al.} [Phys. Rev. A {bold 39}, 4467 (1989)], while the systematic 30{endash}40{percent} discrepancy with superthermal data of Boom {ital et al.} [Phys. Rev. A {bold 49}, 4660 (1994)] might be attributed to a calibration problem in the experiment rather than to an inaccuracy in the long-range potentials. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 528042
- Journal Information:
- Physical Review A, Vol. 56, Issue 2; Other Information: PBD: Aug 1997
- Country of Publication:
- United States
- Language:
- English
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