The third peak structure in the double J/ψ spectrum

Affiliations

• ¹ Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China; Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Southern Nuclear Science Computing Center, South China Normal University, Guangzhou 510006, China.
• ² Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China; Guangdong-Hong Kong Joint Laboratory of Quantum Matter, Southern Nuclear Science Computing Center, South China Normal University, Guangzhou 510006, China. Electronic address: qianwang@m.scnu.edu.cn.
• ³ School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China. Electronic address: du.ml@uestc.edu.cn.