The H-2-S-4(0) 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	2014-03-01T11:45:42Z
dc.date.available	2014-03-01T11:45:42Z
dc.date.issued	1998	en
dc.identifier.issn	0953-4075	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/37565
dc.subject.classification	Optics	en
dc.subject.classification	Physics, Atomic, Molecular & Chemical	en
dc.subject.other	TIME-DEPENDENCE	en
dc.subject.other	BOUND-STATES	en
dc.subject.other	HE	en
dc.subject.other	H2	en
dc.subject.other	ION	en
dc.subject.other	NONEXISTENCE	en
dc.subject.other	DETACHMENT	en
dc.subject.other	ENERGIES	en
dc.subject.other	SYSTEMS	en
dc.subject.other	WIDTHS	en
dc.title	The H-2-S-4(0) spectrum has at least two resonance states	en
heal.type	other	en
heal.language	English	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 a S-4(o) 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 quasilocalized S-4(o) states. The first is 1.43 eV above the n = 2 H threshold, with -2 Im(z) = 1.69 eV. The second is 0.46 eV above the n = 3 threshold, with -2 Im(z) = 0.29 eV. The large value of -2 Im(z) for the lowest S-4(o) state suggests that the a priori qualitative identification of -2 Im (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.publisher	IOP PUBLISHING LTD	en
heal.journalName	JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS	en
dc.identifier.isi	ISI:000076002100001	en
dc.identifier.volume	31	en
dc.identifier.issue	17	en
dc.identifier.spage	L685	en
dc.identifier.epage	L690	en