✦ LIBER ✦

Excited 2Σ+u states of He+2 and the formation of explosive He2+2

✍ Scribed by Aristophanes Metropoulos; Cleanthes A. Nicolaides

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 330 KB
Volume: 187
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(91)80287-8

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✦ Synopsis

Reliable MRD-CI calculations have been carried out on the He: '2: ground and first six excited states. The adiabatic potential energy curves and the non-adiabatic matrix elements at the numerous avoided crossings have been obtained, from these, approximate diabatic curves have been constructed. The results point to the possibility of producing vibrationally excited (v= I ) He;' 'El through He+ fH* collisions. The computed tunneling lifetime of this level is z 10e2 s. A recent observation of He:+ via its Coulomb explosion, determined that its lifetime was longer than 5 ps.

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