2024/08/09 by Xi, Hong-Zhou, Chen, Hua-Xing, Chen, Wei +3
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph)
paper · doi:10.48550/arxiv.2408.04828
We apply the method of QCD sum rules to study the q c q c tetraquark states with the exotic quantum number JPC = 3-+, and extract the mass of the lowest-lying state to be 4.49+0.45-0.41 GeV. To construct the relevant tetraquark currents we need to explicitly add the covariant derivative operator. Our systematic analysis of these interpolating currents indicates that: a) this state readily decays into the P-wave [ρJ/ψ] / [ωJ/ψ] channel but not into the [ρχc2]/[ωχc2]/[J/ψf2(1270)] channels, and b) it readily decays into the [D^* D2^*] channel but not into the P-wave [D^* D^*] channel.