TY - Chin. Phys. B A1 - Xi-Gang Wu(吴锡刚), Yong-Jun Cheng(程勇军), Fang Liu(刘芳), Ya-Jun Zhou(周雅君) T1 - Optical potential approach for positron scattering by metastable 23S state of helium Y1 - 2017-02-05 JF - Chinese Physics B JO - Chin. Phys. B SP - 23401 EP - 023401 VL - 26 IS - 2 UR - https://cpb.iphy.ac.cn N1 - 10.1088/1674-1056/26/2/023401 ER -