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dc.contributor.authorAbdurakhmanov, Ilkhom
dc.contributor.authorAlladustov, S.
dc.contributor.authorBailey, J.
dc.contributor.authorKadyrov, Alisher
dc.contributor.authorBray, Igor
dc.date.accessioned2018-12-13T09:15:00Z
dc.date.available2018-12-13T09:15:00Z
dc.date.created2018-12-12T02:46:59Z
dc.date.issued2018
dc.identifier.citationAbdurakhmanov, I. and Alladustov, S. and Bailey, J. and Kadyrov, A. and Bray, I. 2018. Proton scattering from excited states of atomic hydrogen. Plasma Physics and Controlled Fusion. 60 (9).
dc.identifier.urihttp://hdl.handle.net/20.500.11937/72951
dc.identifier.doi10.1088/1361-6587/aad436
dc.description.abstract

© 2018 IOP Publishing Ltd. Wavepacket continuum-discretisation approach is used to calculate excitation, ionization and electron-capture (ec) cross sections for proton collisions with n = 2 states of atomic hydrogen, where n is the principal quantum number. The approach assumes a classical motion for the projectile and is based on the solution of the three-body Schrödinger equation using the two-center expansion of the total scattering wave function. The scattering wave function is expanded in an orthonormal basis set built from negative-energy eigenstates and wavepacket pseudostates representing the continuum of both the target atom and the atom formed by the projectile after capturing the electron. With a sufficiently large basis, due to the strong coupling between channels, the method produces converged cross sections for direct-scattering, ionization and ec processes simultaneously. For the quasi-elastic transitions, where both orbital and magnetic quantum numbers change, the integrated cross section is infinite. Nevertheless, the corresponding transitions probabilities are finite at any given impact parameter, indicating that the angular differential cross sections can be measured. Calculated cross sections for scattering on the metastable 2s state are compared with other theoretical results obtained using atomic-orbital close-coupling and classical-trajectory Monte Carlo approaches. Considerable disagreement with previous calculations has been found for some transitions at various incident energies.

dc.publisherIOP PUBLISHING LTD
dc.titleProton scattering from excited states of atomic hydrogen
dc.typeJournal Article
dcterms.source.volume60
dcterms.source.number9
dcterms.source.issn0741-3335
dcterms.source.titlePlasma Physics and Controlled Fusion
curtin.departmentSchool of Electrical Engineering, Computing and Mathematical Science (EECMS)
curtin.accessStatusFulltext not available


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