@misc{10481/83977, year = {2023}, month = {6}, url = {https://hdl.handle.net/10481/83977}, abstract = {We report on photoassociation spectroscopy probing the c 3 Σ + 1 potential of the bialkali NaCs molecule, identifying 11 vibrational lines between v ′ = 0 and v ′ = 25 of the excited c 3 Σ + 1 potential and fitting their rotational and hyperfine structure. The observed lines are assigned by fitting to an effective Hamiltonian model of the excited-state structure with rotational and hyperfine constants as free parameters. We discuss unexpected broadening of select vibrational lines and its possible link to strong spin-orbit coupling of the c 3 Σ + 1 potential with the nearby b 3 Π 1 and B 1 Π 1 manifolds. Finally, we report use of the v ′ = 22 line as an intermediate state for two-photon transfer of weakly bound Feshbach molecules to the rovibrational ground state of the X 1 Σ + manifold.}, organization = {NSF (Grant No. PHY-2110225), the AFOSR (Grant No. FA9550-19-1-0089)}, organization = {Grant No. TC-18-003). J.T.Z. was supported by a National Defense Science and Engineering Graduate Fellowship.}, organization = {Spanish Projects No. PID2020-113390GB-I00 (MICIN), No. PY20-00082 (Junta de Andalucía),}, organization = {A-FQM-52-UGR20 (ERDF–University of Granada) and Andalusian Research Group FQM-207}, publisher = {American Physical Society}, title = {High resolution photoassociation spectroscopy of the excited c3 + 1 potential of 23Na133Cs}, author = {Picard, Lewis R. B. and González Férez, María Rosario}, }