Supplementary data: On the 1^1\Sigma^+_u electronic state in the strontium dimer

Experimental energies of the observed rovibrational levels in the 11Σ+u state in the Sr2 molecule All levels relate to the main isotopologue 88Sr2. This folder contains in ASCII format: Sr2_EnergyLevels.dat Experimental energies E (in cm−1) of the observed rovibrational levels obtained via Polarization Labeling Spectroscopy. Sr2_EnergyLevels_1sS.dat Experimental energies E (in cm−1) of the observed rovibrational levels in the 11Σ+u state obtained via Polarization Labeling Spectroscopy.锶二聚体（Sr₂）分子1¹Σ⁺_u态中观测到的振转能级的实验能量值 所有能级均对应于主要同位素异构体88Sr2。 本文件夹以ASCII格式存储以下文件： Sr2_EnergyLevels.dat：通过偏振标记光谱法（Polarization Labeling Spectroscopy）测得的观测振转能级的实验能量E（单位：cm⁻¹）。 Sr2_EnergyLevels_1sS.dat：通过偏振标记光谱法测得的1¹Σ⁺_u态中观测振转能级的实验能量E（单位：cm⁻¹）。