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DC Field | Value | Language |
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dc.contributor.advisor | Bhaduri, Rajat K. | en_US |
dc.contributor.author | Singh, Yogeshwar | en_US |
dc.date.accessioned | 2014-06-18T16:32:38Z | - |
dc.date.available | 2014-06-18T16:32:38Z | - |
dc.date.created | 2009-08-05 | en_US |
dc.date.issued | 1972-10 | en_US |
dc.identifier.other | opendissertations/1028 | en_US |
dc.identifier.other | 1570 | en_US |
dc.identifier.other | 925594 | en_US |
dc.identifier.uri | http://hdl.handle.net/11375/5682 | - |
dc.description.abstract | <p>The two-body elastic scattering data and the binding energy of the deuteron do not uniquely determine the nucleon-nucleon interaction. Many potentials, which fit these data, may give different results in many-body problems due to their different off-energy-shell behaviour. It is also expected that the nucleon-nucleon interaction would be nonlocal at short relative distances and local at comparatively larger (r ≥ 2 Fm) distances. Thus it is of interest to construct and study partly nonlocal potentials.</p> <p>We have generalized the Jost-Pais theorem for nonlocal central and noncentral potentials. A method, based on the formalism of Fuda, has been developed to construct partly nonlocal central phase equivalent potentials. These potentials, constructed in the S-state, have an attractive local part, superimposed with a short range repulsive rank-one separable potential. We study the behaviour of such partly nonlocal potentials in nuclear matter, with a view to examine if these differ significantly from corresponding phase equivalent separable potentials.</p> <p>We have also studied the dependence of the threshold cross section for the reaction p+p → π⁺+d on the nature of the deuteron wave function. Phase equivalent potentials with varying D-state probability of the deuteron have been generated using unitary transformations on the two-body Hamiltonian which includes a local or separable potential. It has been shown that the cross section depends sensitively not only on the D-state probability of the deuteron but also on the form of the wave function at short relative distances, and hence to the off-shell behaviour and the nonlocality of the interaction.</p> | en_US |
dc.subject | Physics | en_US |
dc.subject | Physics | en_US |
dc.title | Studies in Nonlocal Potentials | en_US |
dc.type | thesis | en_US |
dc.contributor.department | Physics | en_US |
dc.description.degree | Doctor of Philosophy (PhD) | en_US |
Appears in Collections: | Open Access Dissertations and Theses |
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fulltext.pdf | 5.25 MB | Adobe PDF | View/Open |
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