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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13781
Title: Electron-impact coherence parameters for electron-impact excitation of laser-excited 174Yb (...6s6p 3P1)
Authors: Hein J.D.
Kidwai S.
Zetner P.W.
Bostock C.
Fursa D.V.
Bray I.
Sharma, Lalita
Srivastava, Rajesh
Stauffer A.
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics
Abstract: We have measured and calculated the P3 collision Stokes parameter for electron-impact collisional de-excitation to the ytterbium (...6s6p 3P1) level from the higher-lying 1P1, 3D1, 2, 3 and 3S1 levels for 20 eV residual energy. These processes are the time-reverse of the experimentally measured processes, where an impact energy of 20 eV was used to collisionally excite the 3P1 target, prepared by resonant laser pumping. Measurements were performed using a crossed-beam apparatus, where excited-state atomic targets were produced using resonant laser radiation incident on the electron-atom interaction region. Calculations were performed in the relativistic convergent close-coupling, convergent close-coupling and relativistic distorted-wave approximations. The theoretical calculations show that the h electron-impact coherence parameter (EICP) is equal to 1/2, independent of the scattering angle. We use this result to present the L⊥ EICP for the (...6s7s 3S 1)→(...6s6p 3P1) collision process. © 2011 IOP Publishing Ltd.
Citation: Journal of Physics B: Atomic, Molecular and Optical Physics (2011), 44(7): -
URI: https://doi.org/10.1088/0953-4075/44/7/075201
http://repository.iitr.ac.in/handle/123456789/13781
Issue Date: 2011
ISSN: 9534075
Author Scopus IDs: 7103275286
57189536298
6602494358
36458058200
56230458100
7005142683
14046198100
7401868829
22999128000
Author Affiliations: Hein, J.D., Department of Physics, University of Windsor, Windsor, ON N9B 3P4, Canada
Kidwai, S., Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
Zetner, P.W., Department of Physics and Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada
Bostock, C., Department of Imaging and Applied Physics, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
Fursa, D.V., Department of Imaging and Applied Physics, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
Bray, I., Department of Imaging and Applied Physics, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
Sharma, L., Physikalisches Institut, Universität Heidelberg, D-69120 Heidelberg, Germany
Srivastava, R., Department of Physics, Indian Institute of Technology (IIT), Roorkee 247667, India
Stauffer, A., Department of Physics and Astronomy, York University, Toronto, ON M3J 1P3, Canada
Corresponding Author: Hein, J. D.; Department of Physics, University of Windsor, Windsor, ON N9B 3P4, Canada; email: heinjd@uwindsor.ca
Appears in Collections:Journal Publications [PH]

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