The radioactive decay of 135La has been studied with the aid of a low background Compton suppression spectrometer and HPGe detectors.The single spectra
Compton suppressed spectra and r-r coincidence spectra were measured.The energies
intensities and cascade relations of r-rays from low excited levels were obtained and the decay scheme of 135La was deduced. The levels of low excited states were calculated using the angular momentum projected shell model(PSM) and compared with experimental values.