Possible \(\Lambda_c\Lambda_c\) molecular bound state

Possible \(\Lambda_c\Lambda_c\) hadronic molecule is investigated in the one-pion-exchange potential model. In the study with this model, the heavier meson exchange effects are encoded into a phenomenological cutoff parameter and couplings to the nearby \(\Sigma_c\Sigma_c\), \(\Sigma_c\Sigma_c^*\), and \(\Sigma_c^*\Sigma_c^*\) channels are essential. From the numerical results, we find that a molecular bound state of two \(\Lambda_c\)'s is possible, where the tensor force plays a crucial role, although the binding energies are sensitive to the cutoff parameter.