$Λ_c N$ bound states revisited

Details $Λ_c N$ bound states revisited $Λ_c N$ bound states revisited

2011-03-23

arxiv.org/abs/1103.4624v2

Phys. Rev. D 85, 014015 (2012)

Physics

High Energy Physics

High Energy Physics - Phenomenology

25 pages, 8 figures, 15 tables; publication version

Scientific paper

10.1103/PhysRevD.85.014015

The one-boson exchange potential model for $\Lambda_cN$ is constructed and the possibility of $\Lambda_cN$ bound states is examined. We consider an effective Lagrangian for the charmed baryons, $\Lambda_c$, $\Sigma_c$, and $\Sigma_c^*$, reflecting the heavy quark symmetry, chiral symmetry, and hidden local symmetry. We determine the coupling constants using various methods. With the derived nonrelativistic potentials, we study the bound state problem of the $\Lambda_cN$ system and relevant coupled channel effects. It is found that molecular bound states of $\Lambda_cN$ are plausible, for which the channel couplings of $\Sigma_cN$ and $\Sigma_c^*N$ are essential.

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