Eur. Phys. J. C 80, 1178 (2020) Arxiv link
Triangle singularity as the origin of X0 (2900) and X1 (2900) observed in B+→D+D-K+
Xiao-Hai Liu1, Mao-Jun Yan2, Hong-Wei Ke1, Gang Li3,a, Ju-Jun Xie4,5,6,b
1 Department of Physics, School of Science, Tianjin University, Tianjin 300350, China
2 School of Physics, Beihang University, Beijing 100191, China
3 College of Physics and Engineering, Qufu Normal University, Qufu 273165, China
4 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
5 School of Nuclear Sciences and Technology, University of Chinese Academy of Sciences, Beijing 101408, China
6 School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450001, Henan, China
a gli@qfnu.edu.cn
b xiejujun@impcas.ac.cn
