Publication:
Session F: Contributed Oral Papers – F4: Theory: Density Matrices in the Quenching of Positronium by Electron Exchange

Simple item page
dc.contributor.authorSwaminathan, Sudha
dc.contributor.authorMerrill, Wyatt
dc.contributor.authorGlynn, Stephen
dc.contributor.authorQuattrucci, Joseph
dc.contributor.departmentWorcester State University
dc.contributor.departmentWorcester State University
dc.contributor.departmentWorcester State University
dc.contributor.departmentWorcester State University
dc.coverage.locationRoom 101, Campus Center, University of Massachusetts - Amherst
dc.coverage.temporal2011-11-19T08:24:00-08:00
dc.coverage.temporal2011-11-19T08:12:00-08:00
dc.date2023-09-23T05:32:54.000
dc.date.accessioned2024-04-26T09:16:04Z
dc.date.available2024-04-26T09:16:04Z
dc.date.issued2011-11-19
dc.description.abstractElectron exchange in a single collision between \textit{ortho} positronium and a target with one unpaired electron can result in the conversion (quenching) of the long-lived \textit{ortho} positronium into the short-lived \textit{para} positronium. The probabilities of forming \textit{para} and\textit{ ortho} positronium after the collision are calculated using angular-momentum coupling and density-matrix techniques. The fraction of the initial \textit{ortho} positronium that is converted to \textit{para} positronium (quenching fraction) is given in terms of complex scattering amplitudes labeled with total electron spin. Quenching fractions are obtained for polarized and unpolarized targets, with and without detection of the spin of the target after the collision.
dc.identifier.urihttps://hdl.handle.net/20.500.14394/8258
dc.relationhttp://blogs.umass.edu/nes2011/
dc.source.statuspublished
dc.subjectNuclear
dc.subjectPhysics
dc.titleSession F: Contributed Oral Papers – F4: Theory: Density Matrices in the Quenching of Positronium by Electron Exchange
dc.typeevent
dc.typeevent
digcom.contributor.authorSwaminathan, Sudha
digcom.contributor.authorMerrill, Wyatt
digcom.contributor.authorGlynn, Stephen
digcom.contributor.authorQuattrucci, Joseph
digcom.identifierclimate_nuclearpower/2011/nov19/45
digcom.identifier.contextkey2490476
digcom.identifier.submissionpathclimate_nuclearpower/2011/nov19/45
dspace.entity.typePublication
Files
Collections
Climate Change and the Future of Nuclear Power