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We consider the ${\bar D}^{(*)}\Sigma_c^{(*)}$ states, together with $J/\psiN$ and other coupled channels, and take an interaction consistent with heavyquark spin symmetry, with the dynamical input obtained from an extension of thelocal hidden gauge approach. By fitting only one parameter to the recent threepentaquark states reported by the LHCb collaboration, we can reproduce thethree of them in base to the mass and the width, providing for them the quantumnumbers and approximate molecular structure as $1/2^-$ $\bar{D} \Sigma_c$,$1/2^-$ $\bar{D}^* \Sigma_c$, and $3/2^-$ $\bar{D}^* \Sigma_c$, and isospin$I=1/2$. We find another state around 4374 MeV, of $3/2^-$ $\bar{D} \Sigma_c^*$structure, for which indications appear in the experimental spectrum. Two othernear degenerate states of $1/2^-$ $\bar{D}^* \Sigma_c^*$ and $3/2^-$ $\bar{D}^*\Sigma_c^*$ nature are also found around 4520 MeV, which although less clear,are not incompatible with the observed spectrum. In addition, a $5/2^-$ $\barD^* \Sigma_c^*$ state at the same energy appears, which however does not coupleto $J/\psi p$ in $S-$wave, and hence it is not expected to show up in the LHCbexperiment.

physical review. d/physical review. d.

Heavy quark spin symmetric molecular states from ${\bar  D}^{(*)}\Sigma_c^{(*)}$ and other coupled channels in the light of the recent  LHCb pentaquarks