-
[1]
. Amsler C et al (Particle Data Group). Phys. Lett. B, 2008,667: 12. Ablikim M et al (BES collaboration). Phys. Lett. B, 2009,677: 239 [arXiv:0903.0900 [hep-ex]]3. BAI J Z et al (BES collaboration). Phys. Rev. Lett., 2003,91: 022001 [arXiv:hep-ex/0303006]4. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2005, 95: 2620015. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2006, 97: 142002 [arXiv:hep-ex/0606047]6. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2006, 96: 162002 [arXiv:hep-ex/0602031]7. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2006, 97: 062001 [arXiv:hep-ex/0405030]8. WANG Y F, hex-ex:0711.4199, talk given at Charm079. Physics at BES-0. Eds. Chao K T, WANG Y F. Int. J.Mod. Phys. A, 2009, 24(Supp.1)10. Rubin P et al. Phys. Rev. D, 2005, 72: 092004; Dobbs S etal. Phys. Rev. Lett., 2008, 101: 182003