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Single ionization of helium by fast proton impact in different kinematical regimes

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dc.contributor.authorChuluunbaatar, O.
dc.contributor.authorKouzakov, K. A.
dc.contributor.authorZaytsev, S. A.
dc.contributor.authorZaytsev, A. S.
dc.contributor.authorShablov, V. L.
dc.date.accessioned2024-11-21T09:54:12Z
dc.date.available2024-11-21T09:54:12Z
dc.date.issued2019
dc.description.abstractWe present ultrahigh-resolution data on fully differential cross sections for single ionization of helium induced by 1 MeV proton impact. In the present work we explore a different regime of kinematic conditions in terms of momentum transfer and electron energies than previously published data. These data are compared with different theoretical calculations. Reasonable agreement between the first Born approximation and experiment is obtained in the kinematic regime close to the Bethe ridge. Far from this region the calculated binary peak is shifted with respect to experiment. In order to resolve this problem, we analyze several theoretical mechanisms beyond the customary first Born approximation theory. These mechanisms include the 3C model (three Coulomb functions), effective charges, off-shell pair T matrices instead of pair potentials, and semiclassical postcollision interaction. We find that a combination of the 3C model with a semiclassical postcollision interaction effect may explain the observed discrepancy.
dc.identifier.citationSingle ionization of helium by fast proton impact in different kinematical regimes / Chuluunbaatar, O [et al.] // Physical Review A. - 2019. - 99. - № 6. - 10.1103/PhysRevA.99.062711
dc.identifier.doi10.1103/PhysRevA.99.062711
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevA.99.062711
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85068117454&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000473006600008
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18321
dc.relation.ispartofPhysical Review A
dc.titleSingle ionization of helium by fast proton impact in different kinematical regimes
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue6
oaire.citation.volume99
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relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
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