Spectroscopic observations, spin-orbit functions, and coupled-channel deperturbation analysis of data on theA Σ1u+and

Global analysis of data on the spin-orbit-coupledA1Σu+andBai1, Ahmed2, Beser3 et al. 2011Phys. Rev. ASelf Cite

“…A representation of the apparatus is shown in [22]. The experimental setup used here was similar to the one used previously for Rb 2 [48].…”

“…There have also been a succession of studies of the A and b states of the lighter homonuclear alkali dimer species Li 2 [33][34][35][36], Na 2 [22,[37][38][39][40][41], K 2 [18,20,[42][43][44][45][46] and Rb 2 [47,48]. For Na 2 [22], data now extend almost continuously from the lowest vibrational levels to the atomic limit.…”

Fourier-transform spectroscopy and coupled-channels deperturbation treatment of theA 1Σ+–b 3Πcomplex of KCs

“…First studies of such kind of system have been reported for the Rb-containing alkali diatomics, in which apparent disorder in vibrational spacing was observed for Rb 2 [17], see [18] for more extensive studies, NaRb [19] and RbCs [20]. The crucial issue however remained unsolved, namely, while the experimental term values were obtained with high precision of about 0.003-0.01 cm −1 , the resulting deperturbed parameters reproduced experimental data with much poorer accuracy of 0.05-0.25 cm −1 [18,19,20]. Furthermore, even the vibrational numbering of the "dark" triplet b 3 Π state was still remained questionable.…”

Optimization of generalized multichannel quantum defect reference functions for Feshbach resonance characterization

“…It would represent a test of the spin-orbit coupling used in the calculation. In this respect, a new perspective for the present analysis is offered by the recent determination of the potential curves and spin-orbit coupling of the (A, b) coupled system in Rb 2 , extracted from the compilation of several high-resolution spectroscopic data [19]. Indeed, the present calculations could be run again with these new accurate data, in order to predict the predissociation width over the whole energy range between P 1/2 and P 3/2 , and [28], below the P 1/2 asymptote taken as the origin of energies.…”

“…This is particularly true in heavy alkali dimers like Rb 2 [18,19], which required novel methods to deperturb the spectra recorded in high-resolution molecular spectroscopic studies [20,21], where almost all rovibrational levels exhibit a mixed singlet/triplet character up to the dissociation limits. This pattern has also been observed in heteronuclear systems involving one heavy alkali atom like NaRb [22,23], NaCs [24], and RbCs [25].…”