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New evidence for a possible hidden symmetry in doubly excited helium

✍ Scribed by O. Sinanoǧlu; D.R. Herrick

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
442 KB
Volume
31
Category
Article
ISSN
0009-2614

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✦ Synopsis

We show that the !ower energy redon of the doubly.excited, autoionizing helium spectrum below theN= 2,3,4 ioniz&ion thresholds can be fitted empirically bp a single three-parameter function using recently derived group theoretic quantum numbers from an SO(4) Lie algebra. The accuracy of the results suggests for helium a possible hidden symmetry which may origjnate from a noncompact group.

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