Extensive ab initio calculation on low-lying excited states of SiN+ cation including spin-orbit coupling YuFang Liu, Hongsheng Zhai and Yanlei Liu Eur. Phys. J. D, 69 3 (2015) 59 Published online: 03 March 2015 DOI: 10.1140/epjd/e2015-50584-y