Study of Ba 6p1/2ns (J=0,1) autoionizing series |
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| Affiliation: | 1. State Key Laboratory of Modern Optical Instrumentation, Zhejiang University and Department of Physics, Zhejiang University, Hangzhou, Zhejiang, 310027, China;2. Laboratory of Atomic and Molecular Nanosciences of Education Ministry, Department of Physics, Tsinghua University, Beijing 100084, China;1. Department of Mechanical Engineering, National Institute of Technology, Warangal 506004, India;2. National Institute of Technology, Andhrapradesh 560017, India;1. University of Jyväskylä, P.O. Box 35, FI-40014, University of Jyväskylä, Finland;2. Centre D’Études Nucléaires de Bordeaux-Gradignan, 19 Chemin Du Solarium, CS 10120, F-33175, Gradignan, France;1. Department of Physics, St. Petersburg State University, Ulianovskaya 1, Petrodvorets, St. Petersburg 198504, Russia;2. Petersburg Nuclear Physics Institute, 188300, Gatchina, St. Petersburg, Russia;3. Institut für Theoretische Physik, Technische Universität Dresden, Mommsenstraße 13, D-10162, Dresden, Germany |
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| Abstract: | With different polarization configurations the spectroscopic properties of Ba 6p1/2ns (J=0) and 6p1/2ns (J=1) autoionizing states have been studied systematically by using an isolated core excitation scheme. Level energies and widths of n members for the J=1 series with n=9–33 and for the J=0 series with n=9–10,12–20 are reported, most of which are observed for the first time. Further information about these two autoionizing series, such as energies of the higher n members and their interseries interactions with 6p3/2nl series, are obtained by means of saturation excitation method. The experimental data on the J=1 series are analyzed with a 13-channel multichannel quantum defect theory, and general agreement between them has been obtained. Several parts of the experimental results are compared with those of previous works, and agree well with them. |
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