[Du, D.; Yu, Jun] Univ S China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.
[Dong, J. Q.] Zhejiang Univ, Inst Fus Theory & Simulat, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China.
[Dong, J. Q.] SW Inst Phys, Chengdu, Peoples R China.
[Li, X. X.; Gong, X. Y.] Univ S China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.