The H2-4So spectrum has at least two resonance states

Bylicki, M; Nicolaides, CA

dc.contributor.author	Bylicki, M	en
dc.contributor.author	Nicolaides, CA	en
dc.date.accessioned	2014-03-01T01:47:30Z
dc.date.available	2014-03-01T01:47:30Z
dc.date.issued	1998	en
dc.identifier.issn	09534075	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25235
dc.title	The H2-4So spectrum has at least two resonance states	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0953-4075/31/17/001	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0953-4075/31/17/001	en
heal.publicationDate	1998	en
heal.abstract	A revival of interest in the prototypical doubly negative ion H2-, has led to a current disagreement as to whether there exists a4So resonance above the H 2p threshold. Our herein reported complex coordinate rotation calculations show that the H2- spectrum has at least two complex eigenvalues, z, corresponding to quasilocalized4So states. The first is 1.43 eV above the n = 2 H threshold, with -2Im(z) = 1.69 eV. The second is 0.46 eV above the n = 3 threshold, with -2Im(z) = 0.29 eV. The large value of -2Im(z) for the lowest4So state suggests that the a priori qualitative identification of -2Im(z) with a rate of decay (width) should be considered as a reasonably good but not rigorous relation, whose understanding should await precise measurement of the spectral density of this state.	en
heal.journalName	Journal of Physics B: Atomic, Molecular and Optical Physics	en
dc.identifier.doi	10.1088/0953-4075/31/17/001	en
dc.identifier.volume	31	en
dc.identifier.issue	17	en
dc.identifier.spage	L685	en
dc.identifier.epage	L690	en