https://doi.org/10.1140/epjc/s10052-017-4770-4
Regular Article - Theoretical Physics
Is the color-octet mechanism consistent with the double 
production measurement at B-factories?
1
Department of Physics, School of Biomedical Engineering, Third Military Medical University, Chongqing, 400038, People’s Republic of China
2
School of Science, Guizhou Minzu University, Guiyang, 550025, People’s Republic of China
3
School of Science, Chongqing University of Posts and Telecommunications, Chongqing, People’s Republic of China
* e-mail: zhansun@cqu.edu.cn
Received:
4
January
2017
Accepted:
19
March
2017
Published online:
8
April
2017
Double production in 
collisions involving color-octet channels are evaluated up to order 
. Having implemented the variation of the parameters (
, 
and long-distance matrix elements), we found that the cross sections for producing double at B-factories range from 
to 0.245 fb, which are even much smaller than that via the color-singlet mechanism. Accordingly, this result is consistent with the measurement by the Belle and BABAR Collaborations.
© The Author(s), 2017
