Possible $Λ_cΛ_c$ molecular bound state

Details Possible $Λ_cΛ_c$ molecular bound state Possible $Λ_cΛ_c$ molecular bound state

2011-05-18

arxiv.org/abs/1105.3693v2

Phys. Lett. B 704, 547 (2011)

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 3 tables, 2 figures; publication version

Scientific paper

10.1016/j.physletb.2011.09.088

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.

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