[Chen, Rong; Li, Xiao-Hua; Cai, Bao-Jun; Chen, Lie-Wen] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China.
[Chen, Lie-Wen] Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China.
[Li, Bao-An] Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA.
[Li, Xiao-Hua] Univ S China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
[Xu, Chang] Nanjing Univ, Dept Phys, Nanjing 210008, Jiangsu, Peoples R China.