A symmetry-guided phenomenological model organizes leading current-current operators for charged-current decays of heavy-light mesons and reproduces heavy-quark scaling relations for decay constants and form factors.
Zweig, 10.17181/CERN-TH-412
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A flavor-mixing SU(3) scheme places observed Pc/Pcs states in attractive 1 and 8' multiplets and predicts masses of single- and double-strange hidden-charm molecules from fitted contact potentials.
Strange hidden-charm pentaquarks modeled as diquark-triquark bound states yield masses between 4200-4590 MeV for S-waves, with P_c cs(4459) assigned as a 3/2- state and P_c cs(4338) as a 1/2- state, plus a predicted lowest 1/2- state at 4200 MeV.
The article explains key physics issues in the transition from the quark parton model to QCD.
The NJL model is shown to produce parton distribution functions and electromagnetic form factors consistent with data by imitating QCD chiral symmetry breaking and confinement.
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A Phenomenological Model of Mesons for Charged Current Weak Decays
A symmetry-guided phenomenological model organizes leading current-current operators for charged-current decays of heavy-light mesons and reproduces heavy-quark scaling relations for decay constants and form factors.
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Classifying the hidden-charm pentaquarks via a flavor mixing scheme
A flavor-mixing SU(3) scheme places observed Pc/Pcs states in attractive 1 and 8' multiplets and predicts masses of single- and double-strange hidden-charm molecules from fitted contact potentials.
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$P_{c\bar cs}(4459)^{0}$, $P_{c\bar c s}(4338)^0$ and mass spectrum of strange hidden-charm pentaquarks
Strange hidden-charm pentaquarks modeled as diquark-triquark bound states yield masses between 4200-4590 MeV for S-waves, with P_c cs(4459) assigned as a 3/2- state and P_c cs(4338) as a 1/2- state, plus a predicted lowest 1/2- state at 4200 MeV.
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From the quark parton model to QCD
The article explains key physics issues in the transition from the quark parton model to QCD.
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A Nambu--Jona-Lasinio model of quantum chromodynamics and hadron structure
The NJL model is shown to produce parton distribution functions and electromagnetic form factors consistent with data by imitating QCD chiral symmetry breaking and confinement.