Spectrum of singly heavy baryons from a chiral effective theory of diquarks

Abstract

The mass spectra of singly charmed and bottom baryons, ${\Lambda }_{c/b}(1/2^{\pm },3/2^{-})$ and ${\Xi }_{c/b}(1/2^{\pm },3/2^{-})$, are investigated using a nonrelativistic potential model with a heavy quark and a light diquark. The masses of the scalar and pseudoscalar diquarks are taken from a chiral effective theory. The effect of $U_A(1)$ anomaly induces an inverse hierarchy between the masses of strange and non-strange pseudoscalar diquarks, which leads to a similar inverse mass ordering in $\rho$-mode excitations of singly heavy baryons.

10 pages, 2 figures, 3 tables; published version

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Cited by in corpus (17)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Charmed baryon spectrum from lattice QCD near the physical point
• Observation of a new ${\Xi }_b^0$ state
• Doubly heavy tetraquarks in a chiral-diquark picture
• Strong decay widths and mass spectra of charmed baryons
• Heavy baryon spectrum with chiral multiplets of scalar and vector diquarks
• Spectra and decay properties of ${\Lambda }_b$ and ${\Sigma }_b$ baryons
• Probing the hadron mass spectrum in dense two-color QCD with the linear sigma model
• Suppression of decay widths in singly heavy baryons induced by the $U_A(1)$ anomaly
• Decay widths and mass spectra of single bottom baryons
• Strong decays of singly heavy baryons from a chiral effective theory of diquarks
• Axial anomaly effect to the chiral-partner structure of diquarks at high temperature
• Hunting for the prospective $T_{cc}$ family based on the diquark-antidiquark configuration
• Fate of ${\Sigma }_c$, ${\Xi }_c^{\prime }$ and ${\Omega }_c$ baryons at high temperature with chiral restoration
• Axial anomaly effect on three-quark and five-quark singly heavy baryons
• The $Z_{cs}$ states and the mixture of hadronic molecule and diquark-anti-diquark components within effective field theory
• Chiral effective theory of scalar and vector diquarks revisited