Regular Article - Theoretical Physics
Is the color-octet mechanism consistent with the double production measurement at B-factories?
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
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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