Lattice calculation of the $\hat{I}{\cdot }_c\hat{I}{\cdot }_c$ and $J/\ddot{I}ˆJ/\ddot{I}ˆ$ s-wave scattering length

Yu Meng, Chuan Liu, Xin-Yu Tuo +2

We calculate the s-wave scattering length in the $0^{+}$ sector of $\hat{I}{\cdot }_c\hat{I}{\cdot }_c$ and the $2^{+}$ sector of $J/\ddot{I}ˆJ/\ddot{I}ˆ$ using three $N_f=2$ twisted mass gauge ensembles with the lattice spa…