Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/25580
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, Lalita
Srivastava, Rajesh
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, 39(11): 2403-2410
URI: https://doi.org/10.1088/0953-4075/39/11/007
http://repository.iitr.ac.in/handle/123456789/25580
Issue Date: 2006
Keywords: Electric excitation
Electron emission
Electron scattering
Mathematical models
Polarization
Relativity
Electron Impact energies
Excitation energy
Non-relativistic amplitudes
Spin effects
Mercury (metal)
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
Funding Details: Council of Scientific and Industrial Research, India, CSIR
Corresponding Author: Außendorf, G.; Physikalisches Institut, Wilhelm-Klemm-Straße 10, D-48149 Münster, Germany
Appears in Collections:Journal Publications [PH]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.