Study Of The Radiative Decays Of ?_cJ??V(?,?,?)

Using 447.9M ?(2S)data collected by BESIII in 2009 and 2012,we study the radiative decays ?cJ??V(J=0,1,2,V=?,?,?),and measure their branching fractions:B(?c1???)=(202.7±3.8±11.6)× 10-6,B(?c2???)=(16.5±2.1±1.3)× 10-6,B(?c0???)=(3.27±1.21±0.33)×10-6,B(?c1???)=(24.3±2.21±1.12)×10-6,B(?c2 ???)=(3.0±1.12±0.55)× 10-6,B(?c0 ???)=(9.35±1.96±0.94)× 10-6,B(?c1???)=(69.87±3.17±3.77)× 10-6,B(?c2???)=(3.10±1.24±3.32)×10-6,where the first statistical,and the second ones are systematic.We observe ?c2 ??p and?c0??? for the first time with the significance of 8.8? and 5.0?,respectively.In addition,we also perform helicity amplitude analysis with the large samples of ?cJ??V(?,?,?).In addition,the fractions of the transverse polarization component of the vector meson in ?c1??V decays are measured to be 0.052±0.009±0.004 for fT(?c1???),0.12±0.05±0.04 for fT(?c1???),and 0.060±0.022±0.011 for fT(?c1???),respectively.