Pentaquark states with hidden charm

Abstract

I develop an extension of the usual three-flavor quark model to four flavors (u, d, s and c), and discuss the classification of pentaquark states with hidden charm. This work is motivated by the recent observation of such states by the LHCb Collatoration at CERN.

6 pages, 1 figure, 3 table, plenary talk at XL Symposium on Nuclear Physics, Cocoyoc, Mexico, January 5-8, 2017. To be published in Journal of Physics: Conference Series

References in corpus (5)

• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Studying the P_c(4450) resonance in J/psi photoproduction off protons
• The hidden charm pentaquarks are the hidden color-octet $uud$ baryons?
• A Search for the LHCb Charmed 'Pentaquark' using Photo-Production of $J/\psi$ at Threshold in Hall C at Jefferson Lab
• Heavy pentaquark states and a novel color structure