Excited gerade states in Ne₂and Kr₂

Abstract

I n order to study thegerade Rydbergstates aftherare-gasexeimers the absorption spectra of Ne, and Kr, in the 'Xu state were investigated. Using a dye laser a resolution of better than I cm-' was achieved. The observed absorption bands were attributed to transitions to Ne2(3p, ' n ~, Ne2(4p,'XJ, Ne,(4p, >ne), Kr2(6p, Kr,(hp,'n,), Kr2(7p,'Xs) and Kr2(7p, In,) respectively. Although perturbations by crossings with repulsive curves are present, for most levels several vibrational transitions were identified and the spectroscopic propertier are determined.

Calculations of liquid helium and neon VUV emission spectra, self-absorption and scattering for a neutrino detector

“…The initial He excited state has equilibrium distance R e = 1Å, energy 18.2 eV and the harmonic-oscillator frequency ω e = 1861 cm −1 [17]. Corresponding values for the Ne 3s 3 Σ u initial state are: 1.75 A, 16.11 eV, and 540 cm −1 [19,22]. Neglecting anharmonic corrections, we can write the nuclear wavefunction of the lowest vibrational state as…”

“…The potential curves of the lowest excited states of Ne 2 are given in Ref. [19]. The ground state of neon diatomic molecule is investigated in [20,21,22,23].…”

Spectroscopic characterization of the potential energy functions of Ne2 Rydberg states in the vicinity of the Ne(1S0)+Ne(4p′) dissociation limits

“…The dimers are model systems for studying atomatom interactions [3] and represent a starting point to describe the properties of larger rare-gas clusters [4,5]. Several experimental and theoretical studies have been devoted to the ground and first excited singlet states of Ne 2 [6][7][8][9][10] and to its triplet Rydberg states [10][11][12][13][14][15][16][17][18][19][20], which were studied from the metastable a 3 R þ u state. The six low-lying electronic states of the Ne þ 2 ion have been studied by microwave electronic spectroscopy [21,22] and ab initio quantum chemistry [23].…”