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Comparative studies on ionizations in Ps-atom scattering using the Coulomb-Born approximation

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dc.contributor.author Ray, H
dc.date.accessioned 2008-08-06T05:49:45Z
dc.date.available 2008-08-06T05:49:45Z
dc.date.issued 2002-08
dc.identifier.citation Journal of Physics B: Atomic, Molecular, and Optical Physics, Vol. 35, No. 15, pp. 3365 - 3376 en
dc.identifier.issn 0953-4075
dc.identifier.uri http://hdl.handle.net/2248/3044
dc.description Restricted Access
dc.description.abstract Three different types of ionization in Ps-He scattering are studied using the Coulomb-Born approximation. Two different approaches are used to orthogonalize the continuum Coulomb wavefunctions. The non-unitarity problem discussed by McAlinden et al (McAlinden M T, MacDonald F G R S and Walters H R J 1996 Can. J. Phys. 74 434) in Ps-atom scattering has been overcome in the present analytical methodology. All the important elastic and inelastic channels for both the atoms are taken into consideration. Comparison of the ionization cross sections with other atomic targets reveals the importance of van der Waals forces through the shifting of peak positions in agreement with the predicted strengths (<A article="0022-3700/13/17/017">Martin D W and Fraser P A 1980 J. Phys. B: At. Mol. Phys. 13 3383</A>). The possibility of an additional channel is suggested from a comparison of the total cross section curve with experiment. en
dc.format.extent 3894 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Institute of Physics en
dc.relation.uri http://www.iop.org/EJ/abstract/0953-4075/35/15/310/ en
dc.subject Ionization In Ps-He Scattering en
dc.subject Ps-Atom Scattering en
dc.subject Elastic and Inelastic Channels en
dc.subject Van Der Waals Forces en
dc.title Comparative studies on ionizations in Ps-atom scattering using the Coulomb-Born approximation en
dc.type Article en


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