• [1]

    Beringer J et al. (Particle Data Group). Phys. Rev. D, 2012, 86: 010001[2] Agostinelli S et al. (GEANT4 Collaboration). Nucl. Instrum. Methods A, 2003, 506: 250[3] Allison J et al. IEEE Trans. Nucl. Sci., 2006, 53: 270[4] PING R G et al. Chinese Physics C (HEP NP), 2008, 32: 599[5] CHEN J C et al. Phys. Rev. D, 2005, 70: 011102(R)[6] Ablikim M et al. (BESⅢ collaboration). Phys. Lett. B, 2012, 710: 594[7] Mendez H et al. (CLEO collaboration). Phys. Rev. D, 2008, 78: 011102(R)[8] Berger N et al. Chinese Physics C (HEP NP), 2010, 34: 1779