English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The recent observation of two hidden-charm pentaquark states by LHCbcollaborations prompted us to investigate the exotic states close to the$\bar{D}\Lambda_{\rm c}$, $\bar{D}^{\ast}\Lambda_{\rm c}$, $\bar{D}\Sigma_{\rmc}$, $\bar{D}\Sigma^{\ast}_{\rm c}$, $\bar{D}^{\ast}\Sigma_{\rm c}$ and$\bar{D}^{\ast}\Sigma^{\ast}_{\rm c}$ thresholds. We therefore studied thehadronic molecules that form the coupled-channel system of$\bar{D}^{(\ast)}\Lambda_{\rm c}$ and  $\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$. As the heavy quark spin symmetrymanifests the mass degenerations of $\bar{D}$ and $\bar{D}^\ast$ mesons, and of$\Sigma_{\rm c}$ and $\Sigma^\ast_{\rm c}$ baryons, the coupled channels of$\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$ are important in these molecules. Inaddition, we consider the coupling to the $\bar{D}^{(\ast)}\Lambda_{\rm c}$channel whose thresholds are near the $\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$thresholds, and the coupling to the state with nonzero orbital angular momentummixed by the tensor force. This full coupled channel analysis of$\bar{D}^{(\ast)}\Lambda_{\rm c}-\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$ withlarger orbital angular momentum has never been performed before. By solving thecoupled-channel Schr\"odinger equations with the one meson exchange potentialsthat respected to the heavy quark spin and chiral symmetries, we studied thehidden-charm hadronic molecules with $I(J^P)=1/2(3/2^\pm)$ and $1/2(5/2^\pm)$.We conclude that the $J^P$ assignment of the observed pentaquarks is $3/2^+$for $P^+_{\rm c}(4380)$ and $5/2^-$ for $P^+_{\rm c}(4450)$, which is agreementwith the results of the LHCb analysis. In addition, we give predictions forother $J^P=3/2^\pm$ states at 4136.0, 4307.9 and 4348.7 MeV in $J^P=3/2^-$, and4206.7 MeV in $J^P=3/2^+$, which can be further investigated by means ofexperiment.

physical review. d/physical review. d.

Hidden-charm pentaquarks as a meson-baryon molecule with coupled  channels for $\bar{D}^{(\ast)}\Lambda_{\rm c}$ and  $\bar{D}^{(\ast)}\Sigma^{(\ast)}_{\rm c}$