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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13442
Title: (e, eγ)-coincidence studies to determine spin-resolved Stokes parameters of the 185 nm emission line in mercury
Authors: Außendorf G.
Jüttemann F.
Muktavat K.
Sharma L.
Srivastava R.
Stauffer A.D.
Bartschat K.
Fursa D.V.
Bray I.
Hanne G.F.
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics
Abstract: Direct measurements of the three Stokes parameters (polarization components) P1, P2 and P3 of the VUV Hg transition 6s6p1P1 → 6s21S 0 (185 nm) have been carried out at electron impact energies of 15 eV, 50 eV and 100 eV. Within the experimental uncertainty, no influence of the electron spin was discovered for scattering angles ≤ 30°. At 15 eV excitation energy and scattering angles ≥ 80°, increasing spin effects become apparent. The experimental data are compared to theoretical predictions from a first-order full-relativistic distorted-wave model, a five-state Breit-Pauli R-matrix (close-coupling) approach, and a convergent close-coupling model, in which relativistic effects are accounted for by adding non-relativistic amplitudes using known intermediate-coupling coefficients. At scattering angles ≤ 15°, all of the theories reproduce the experimental data well, whereas the CCC model exhibits the best overall agreement with experiment at large scattering angles. © 2006 IOP Publishing Ltd.
Citation: Journal of Physics B: Atomic, Molecular and Optical Physics (2006), 39(11): 2403-2410
URI: https://doi.org/10.1088/0953-4075/39/11/007
http://repository.iitr.ac.in/handle/123456789/13442
Issue Date: 2006
ISSN: 9534075
Author Scopus IDs: 13805305100
13805955900
6602446217
14046198100
7401868829
22999128000
8939149800
56230458100
7005142683
13806342600
Author Affiliations: Außendorf, G., Physikalisches Institut, Universität Münster, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
Jüttemann, F., Physikalisches Institut, Universität Münster, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
Muktavat, K., Department of Physics, Indian Institute of Technology - Roorkee, Roorkee 247667, India
Sharma, L., Department of Physics, Indian Institute of Technology - Roorkee, Roorkee 247667, India
Srivastava, R., Department of Physics, Indian Institute of Technology - Roorkee, Roorkee 247667, India
Stauffer, A.D., Department of Physics and Astronomy, York University, Toronto, M3J 1P3, Canada
Bartschat, K., Department of Physics and Astronomy, Drake University, Des Moines, IA 50311, United States
Fursa, D.V., ARC Center for Anti-Matter Studies, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
Bray, I., ARC Center for Anti-Matter Studies, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
Hanne, G.F., Physikalisches Institut, Universität Münster, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
Corresponding Author: Außendorf, G.; Physikalisches Institut, Universität Münster, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
Appears in Collections:Journal Publications [PH]

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