Direct measurement of the cross sections for D0D¯0, D+D−D+D− and DD¯ production by e+e−e+e− annihilation at the center-of-mass energy s=3.773 GeV
M Ablikim,J Z Bai,Y Ban,J G Bian,Xu Cai,H F Chen,J C Chen,Y B Chen,S P Chi,Y P Chu,X Z Cui,Y S Dai,Z Y Deng,L Y Dong,Q F Dong,S X Du,Z Z Du,J Fang,S S Fang,C D Fu,C S Gao,Y N Gao,S D Gu,Y T Gu,Y N Guo,K L He,Mao He,Y K Heng,H M Hu, T Hu,X T Huang,X B Ji,X S Jiang,J B Jiao,D P Jin,Shan Jin,Yi Jin,Y F Lai,G Li,H B Li,J Li,R Y Li, Shi Ming Li,W D Li,X Q Li,Y L Li,Y F Liang,H B Liao, C X Liu, Fuyi Liu,H M Liu,J P Liu,R G Liu,Z A Liu,Feng Lu,G R Lu,H J Lu,J G Lu,C L Luo,F C Ma,H L Ma,L L Ma,Q M Ma,X B Ma,Z P Mao,X H Mo,Jun Nie,H P Peng,N D Qi,Hongyan Qin,J F Qiu,Z Y Ren,G Rong,L Y Shan,Li Shang,D L Shen,X Y Shen,H Y Sheng,F Shi,Xiao Shi,H S Sun, J F Sun,S S Sun,Y Z Sun,Z J Sun,Z Q Tan,X Tang,Y R Tian,G L Tong, D Y Wang, L S Wang,Min Wang,P L Wang,W F Wang,Y F Wang, Z Y Wang,C L Wei,D H Wei,N Wu,X M Xia,X X Xie,B Xin,G F Xu, Yang Xu,M L Yan,Fan Yang,H X Yang,Jian Yang,Y X Yang,M H Ye,Y X Ye,Z Y Yi,G W Yu,C Z Yuan,J M Yuan,Yong Yuan,S L Zang,Yong Zeng, B Y Zhang,C C Zhang,D H Zhang,H Y Zhang,J W Zhang,Q J Zhang,X Y Zhang,Yiyun Zhang,Z P Zhang,D X Zhao, J W Zhao,M G Zhao,P P Zhao,W R Zhao,H Q Zheng, J P Zheng,Z P Zheng,Liang Zhou,N F Zhou,K J Zhu,Q M Zhu,Y S Zhu,Z A Zhu,B A Zhuang,X A Zhuang,B S Zou Nuclear Physics, Section B(2005)
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