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Coupled-Channel Optical Calculations for e+--Rb Collision at Intermediate Energies |
ZHANG Yong-Zhi 1,2;ZHOU Ya-Jun1;XU Tian-Fu3 |
1Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012
2Department of Physics, Heilongjiang University, Harbin 150080
3College of Science, Yanshan University, Qinhuangdao 066004
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Cite this article: |
ZHANG Yong-Zhi, ZHOU Ya-Jun, XU Tian-Fu 2007 Chin. Phys. Lett. 24 408-410 |
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Abstract We present the calculation of total cross sections for positron scattering by Rb at intermediate energies by using the coupled-channel optical method, in which an equivalent-local optical potential has been used to describe the continuum and rearrangement process. The present total cross sections are in good agreement with the measurements of Parikh et al. [Phys. Rev. A 47 (1993) 1535] and other theoretical calculation results. Our results show three peaks in the vicinity of 47eV, which have not been found in the revious measurements and theoretical calculations.
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Keywords:
34.85.+x
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Received: 30 October 2006
Published: 24 February 2007
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