Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3116
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dc.contributor.authorRay, H-
dc.date.accessioned2008-08-14T05:20:25Z-
dc.date.available2008-08-14T05:20:25Z-
dc.date.issued2002-05-
dc.identifier.citationNuclear Instruments and Methods in Physics Research Section B, Vol. 192, No. 1 - 2, pp. 191 - 196en
dc.identifier.issn0168-583X-
dc.identifier.urihttp://hdl.handle.net/2248/3116-
dc.descriptionRestricted Access-
dc.description.abstractIonizations in Ps-atom scattering are studied using three different types of target: H, He and Li. Three different types of ionization cross-sections are compared, considering a large number of excitation channels of both the atoms in each system. The findings in Ps-Li system is much different from Ps-H and Ps-He. The target-ionization and both ionization are competeting with each other in Ps-H and Ps-He systems; whereas in Ps-Li, both ionizations are negligible and target-ionization is competeting with Ps-ionization. However, Ps-ionization is important in all the three systems. The slow rate of falling of the total ionization cross-sections with the increase of energy, indicates the importance of ionization at all the energies above thresholds. Comparison of the total ionization cross-section curves of the three different systems indicates the importance of the forces due to mutual polarization in Ps-atom scattering through shifting of ionization peaks.en
dc.format.extent3894 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttp://dx.doi.org/10.1016/S0168-583X(02)00867-4en
dc.subjectIonizationen
dc.subjectCross-sectionen
dc.subjectScatteringen
dc.subjectPositroniumen
dc.subjectFirst Born approximationen
dc.titleIonizations in Ps-atom scatteringen
dc.typeArticleen
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