@article{479d922f1666421ca677ff7c3c5aebd3,
title = "Nonadiabatic effects on the positions and lifetimes of the low-lying rovibrational levels of the GK 1Σ + g and H 1Σ + g states of H2",
abstract = "{\textcopyright} 2018 The Royal Society of Chemistry.The term values of rovibrational levels of the GK 1Σ+g and H 1Σ+g states of H2 have been measured with absolute and relative accuracies down to 10-4 cm-1 (≈3 MHz) and 10-6 cm-1 (≈30 kHz), respectively, by measuring transitions to long-lived high-n Rydberg states using single-mode cw laser radiation and a collimated supersonic beam of cold H2 molecules. The term values are compared with those determined in earlier experimental and theoretical investigations and the comparison points at discrepancies and a need for improved theoretical treatments of nonadiabatic, relativistic and radiative corrections for these states. The lifetimes of several low-lying rovibrational levels of the GK, H and I+ 1Πg states have been determined in pump-probe experiments. These lifetimes reveal a significant dependence on the electronic, vibrational and rotational excitation and also deviate from results obtained in earlier experimental and theoretical investigations.",
author = "N. H{\"o}lsch and M. Beyer and F. Merkt",
year = "2018",
doi = "10.1039/c8cp05233f",
language = "English",
volume = "20",
pages = "26837--26845",
journal = "Physical Chemistry Chemical Physics",
issn = "1463-9076",
publisher = "The Royal Society of Chemistry",
number = "42",
}