| Title | The C(2)1Πu state in Rb2. Observation and deperturbation |
|---|---|
| ID_Doc | 19206 |
| Authors | Pashov, A; Kowalczyk, P; Szczepkowski, J; Jastrzebski, W |
| Title | The C(2)1Πu state in Rb2. Observation and deperturbation |
| Year | 2022 |
| Published | |
| Abstract | We report a systematic study of the C(2)(1)Pi(u) electronic state in rubidium dimer, observed in polarization labelling spectroscopy experiment through the C <- X-1 Sigma(+)(g) transitions recorded under rotational resolution in two isotopologues Rb-85(2) and (RbRb)-Rb-85-Rb-87. Regularity of the vibrational progressions was distorted by numerous in-teractions with the surrounding (21)Sigma(u)(u), 2(3)Pi(u) and 3(3)Sigma(+)(u) states. Deperturbation was performed by coupled-channels analysis taking into account spin-orbit and rotational interactions. Potential energy curves and parameters describing the off-diagonal matrix elements were determined as functions of internuclear distance. About 3000 line frequencies from the present study are reproduced with a standard deviation of 0.07 cm(-1), in agreement with the experimental accuracy. Along with this, the model is consistent with all high resolution experimental data on the involved electronic states, available in the literature. |
| https://arxiv.org/pdf/2205.14124 |
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