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Asymmetry sum rule for molecular predissociation

Hawes, F; Torop, L.W; Lewis, Brenton; Gibson, Stephen

Description

In the case of weak diatomic molecular predissociation by noninteracting, optically inactive continuum states, it is demonstrated that the predissociation line shape is more accurately represented by a Beutler-Fano profile than by a Lorentzian. The weak asymmetry that is found to occur is due principally to interactions with neighboring vibrational resonances. For this type of predissociation in the case of multiple continua, a sum rule for the corresponding line-shape asymmetry is derived....[Show more]

dc.contributor.authorHawes, F
dc.contributor.authorTorop, L.W
dc.contributor.authorLewis, Brenton
dc.contributor.authorGibson, Stephen
dc.date.accessioned2009-11-10T05:14:57Z
dc.date.accessioned2010-12-20T06:04:03Z
dc.date.available2009-11-10T05:14:57Z
dc.date.available2010-12-20T06:04:03Z
dc.identifier.citationPhysical Review A 63.1 (2000): 012513/1-12
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.urihttp://hdl.handle.net/10440/1005
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/1005
dc.description.abstractIn the case of weak diatomic molecular predissociation by noninteracting, optically inactive continuum states, it is demonstrated that the predissociation line shape is more accurately represented by a Beutler-Fano profile than by a Lorentzian. The weak asymmetry that is found to occur is due principally to interactions with neighboring vibrational resonances. For this type of predissociation in the case of multiple continua, a sum rule for the corresponding line-shape asymmetry is derived. This sum rule is verified numerically using singlechannel and multichannel coupled Schro¨dinger-equation calculations for the Schumann-Runge band system of O2. Similar results are presented for the case of optically active continua.
dc.format12 pages
dc.publisherAmerican Physical Society
dc.rightshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2000 The American Physical Society
dc.sourcePhysical Review A: Atomic, Molecular and Optical Physics
dc.source.urihttp://prola.aps.org/abstract/PRA/v63/i1/e012513
dc.titleAsymmetry sum rule for molecular predissociation
dc.typeJournal article
local.description.refereedYes
local.identifier.citationvolume63
dc.date.issued2000-12-13
local.identifier.absfor020201
local.identifier.ariespublicationMigratedxPub2278
local.type.statusPublished Version
local.contributor.affiliationHawes, F, University of Adelaide
local.contributor.affiliationTorop, L.W., University of Adelaide
local.contributor.affiliationLewis, Brenton, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.contributor.affiliationGibson, Stephen, Research School of Physical Sciences and Engineering, Atomic and Molecular Physics Laboratories
local.bibliographicCitation.startpage0125131
local.bibliographicCitation.lastpage12
local.identifier.doi10.1103/PhysRevA.63.012513
dc.date.updated2015-12-10T11:56:50Z
local.identifier.scopusID2-s2.0-18344395913
CollectionsANU Research Publications

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