A Lattice Study of $(\bar{D}_1 D^{*})^\pm$ Near-threshold Scattering

Understand

In this exploratory lattice study, low-energy near threshold scattering of the $(\bar{D}_1 D^{*})^\pm$ meson system is analyzed using lattice QCD with $N_f=2$ twisted mass fermion configurations.

• Both s-wave ($J^P=0^-$) and p-wave ($J^P=1^+$) channels are investigated.
• It is found that the interaction between the two charmed mesons is attractive near the threshold in both channels.
• This calculation provides some hints in the searching of resonances or bound states around the threshold of $(\bar{D}_1 D^{*})^\pm$ system.