Masses of ground-state mesons and baryons, including those with heavy quarks

Abstract

Using a confining, symmetry-preserving regularisation of a vector$\times$vector contact interaction, we compute the spectra of ground-state pseudoscalar and vector $(f\bar{g})$ mesons, scalar and axial-vector $(fg)$ diquarks, and $J^P=1/2^{+},3/2^{+}$ $(fgh)$ baryons, where $f,g,h\in \{u,d,s,c,b\}$. The diquark correlations are essentially dynamical and play a key role in formulating and solving the three-valence-quark baryon problems. The baryon spectrum obtained from this largely-algebraic approach reproduces the 22 known experimental masses with an accuracy of $2.9(2.4)$%. It also possesses the richness of states typical of constituent-quark models, predicting many heavy-quark baryons not yet observed. This study indicates that diquark correlations are an important component of all baryons; and owing to the dynamical character of the diquarks, it is typically the lightest allowed diquark correlation which defines the most important component of a baryon's Faddeev amplitude.

arXiv comment18 pages, 5 figures, 5 tables

References in corpus (87)

• Dyson-Schwinger Equations and the Application to Hadronic Physics
• pi- and K-meson Bethe-Salpeter Amplitudes
• Gluon and ghost propagators in the Landau gauge: Deriving lattice results from Schwinger-Dyson equations
• Heavy Baryons in a Quark Model
• Pion mass and decay constant
• Baryons as relativistic three-quark bound states
• A review of the open charm and open bottom systems
• Excited state baryon spectroscopy from lattice QCD
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Goldstone Theorem and Diquark Confinement Beyond Rainbow-Ladder Approximation
• Scattering processes and resonances from lattice QCD
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Charmed bottom baryon spectroscopy from lattice QCD
• Progress Toward Understanding Baryon Resonances
• Dynamical Chiral Symmetry Breaking, Goldstone's Theorem and the Consistency of the Schwinger--Dyson and Bethe--Salpeter Equations
• Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
• Update: Precision D_s decay constant from full lattice QCD using very fine lattices
• Hadron Properties and Dyson-Schwinger Equations
• Extended NJL Model for light and heavy mesons without q-qbar thresholds
• The Infrared Behaviour of the Pure Yang-Mills Green Functions
• Quark flavour effects on gluon and ghost propagators
• Analytic structure of the Landau gauge gluon propagator
• Aspects and consequences of a dressed-quark-gluon vertex
• Light Hadron Masses from Lattice QCD
• Precision tests of the J/ψ from full lattice QCD: mass, leptonic width and radiative decay rate to η_c
• Heavy meson masses and decay constants from relativistic heavy quarks in full lattice QCD
• The pion: an enigma within the Standard Model
• Abelian anomaly and neutral pion production
• Process-independent strong running coupling
• Unquenched Gluon Propagator in Landau Gauge
• pi- and rho-mesons, and their diquark partners, from a contact interaction
• B-meson decay constants: a more complete picture from full lattice QCD
• Precise predictions of charmed-bottom hadrons from lattice QCD
• Bethe-Salpeter equation and a nonperturbative quark-gluon vertex
• Pion form factor from a contact interaction
• Octet and Decuplet Baryons in a Covariant and Confining Diquark-Quark Model
• Nucleon and Roper electromagnetic elastic and transition form factors
• Non-perturbatively Improved Heavy-Light Mesons: Masses and Decay Constants
• Completing the picture of the Roper resonance
• Tracing masses of ground-state light-quark mesons
• Masses of ground and excited-state hadrons
• Symmetry preserving truncations of the gap and Bethe-Salpeter equations
• Effective masses of diquarks
• Spectrum of light- and heavy-baryons
• Doubly heavy baryons in QCD sum rules
• Masses and decay constants of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ from $N_f=2$ lattice QCD close to the physical point
• Perspective on rainbow-ladder truncation
• Spectrum of hadrons with strangeness
• Constituent quark model description of charmonium phenomenology
• Locating the Gribov horizon
• Spectra of heavy quarkonia in a Bethe-Salpeter-equation approach
• Low-lying baryon masses using $N_f=2$ twisted mass clover-improved fermions directly at the physical point
• Unquenching the gluon propagator with Schwinger-Dyson equations
• On light baryons and their excitations
• Bottomonium in a Bethe-Salpeter-equation study
• Is the QCD ghost dressing function finite at zero momentum ?
• Light isovector resonances in ${\pi }^{-}p\to {\pi }^{-}{\pi }^{-}{\pi }^{+}p$ at 190 GeV/$c$
• Chiral susceptibility and the scalar Ward identity
• Three Lectures on Hadron Physics
• Elastic and transition form factors of the Δ(1232)
• Baryon and meson screening masses
• Understanding the nucleon as a Borromean bound-state
• Poincaré-covariant analysis of heavy-quark baryons
• Process-independent effective coupling. From QCD Green's functions to phenomenology
• Structure of the nucleon's low-lying excitations
• Charmonia in a Contact Interaction
• Charmed mesons with a symmetry-preserving contact interaction
• Masses and decay constants of D(s)* and B(s)* mesons with Nf = 2 + 1 + 1 twisted mass fermions
• Scale-setting, flavour dependence and chiral symmetry restoration
• Masses and decay constants of $D_{(s)}^{\ast }$ and $B_{(s)}^{\ast }$ mesons in Lattice QCD with $N_f=2+1+1$ twisted-mass fermions
• The S- and P-wave low-lying baryons in the chiral quark model
• Features and flaws of a contact interaction treatment of the kaon
• Contact-interaction Faddeev equation and, inter alia, proton tensor charges
• Insights into the gamma* N -> Delta transition
• ${\eta }_c$ Elastic and Transition Form Factors: Contact Interaction and Algebraic Model
• Parity partners in the baryon resonance spectrum
• Electromagnetic properties of diquarks
• Diquarks: condensation without bound states
• Probing the quark-gluon interaction with hadrons
• Effects of a dressed quark-gluon vertex in vector heavy-light mesons and theory average of B(c)* meson mass
• Dressed-quarks and the nucleon's axial charge
• Effects of a dressed quark-gluon vertex in pseudoscalar heavy-light mesons
• Aspects of open-flavour mesons in a comprehensive DSBSE study
• Results from the N* program at JLab
• New Perspective on Hybrid Mesons
• Structure of the orbital excited $N^{\ast }$ from the Schwinger-Dyson equations
• Heavy-light mesons spectra in a contact interaction

Cited by in corpus (49)

• Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
• Empirical Consequences of Emergent Mass
• Masses of Light and Heavy Mesons and Baryons: A Unified Picture
• Emergent Hadron Mass in Strong Dynamics
• Reflections upon the Emergence of Hadronic Mass
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Masses of positive- and negative-parity hadron ground-states, including those with heavy quarks
• Spectroscopy of ${\mathbf{B}}_{\mathbf{c}}$ mesons and the possibility of finding exotic ${\mathbf{B}}_{\mathbf{c}}$-like structures
• Contact interaction analysis of pion GTMDs
• Resolving the Bethe-Salpeter kernel
• Triply charmed and bottom baryons in a constituent quark model
• Triply heavy baryon spectroscopy in the relativistic quark model
• Analysis of the triply-heavy baryon states with the QCD sum rules
• Going in quest of potential tetraquark interpretations for the newly observed $T_{\psi \psi }$ states in light of the diquark-antidiquark scenarios
• The Status of ${\Xi }_{cc}^{++}$ Baryon: investigating quark-diquark model
• Electromagnetic Form Factors and Charge Radii of Pseudoscalar and Scalar Mesons: A Comprehensive Contact Interaction Analysis
• Towards the discovery of novel $B_c$ states: radiative and hadronic transitions
• Heavy-light mesons beyond ladder approximation
• Quark anomalous magnetic moment and its effects on the $\rho$ meson properties
• Distribution amplitudes of light diquarks
• Contact interaction analysis of octet baryon axialvector and pseudoscalar form factors
• $B_c$ meson spectroscopy motivated by general features of pNRQCD
• Masses and magnetic moments of exotic fully heavy pentaquarks
• Heavy+light pseudoscalar meson semileptonic transitions
• Transverse momentum distributions of valence quark in light and heavy vector mesons
• NLO effects for ${\Omega }_{QQQ}$ Baryons in QCD Sum Rules
• Exotic pentaquark states with the $qqQQ\bar{Q}$ configuration
• Unpolarized generalized parton distributions of light and heavy vector mesons
• Light-front Wave Functions of Vector Mesons in an Algebraic Model
• Can the hyperfine mass splitting formula in heavy quarkonia be applied to the $B_c$ system?
• Regge trajectories for the triply heavy bottom-charm baryons in the diquark picture
• Effects of Final State Interactions on Landau Singularities
• Mass Spectra of One or Two Heavy Quark Mesons and Diquarks within a Nonrelativistic Potential Model
• Triply heavy baryon spectroscopy revisited
• Inclusive weak-annihilation decays and lifetimes of beauty-charmed baryons
• Systematic analysis of the mass spectra of triply heavy baryons
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Mass-dependence of pseudocritical temperature in mean field approximation
• Magnetic moments of spin--1/2 triply-heavy baryons: A study of Light-cone QCD and Quark-diquark model
• Production of the triply heavy ${\Omega }_{ccc}$ and ${\Omega }_{bbb}$ baryons at $e^{+}{e}^{-}$ colliders
• Mass spectrum and magnetic moments of singly-charmed baryons: a quark-diquark model analysis of ${\Omega }_c(3185{)}^0$ and ${\Omega }_c(3327{)}^0$
• Nucleon-to-Resonance Form Factors at Large Photon Virtualities
• Mass spectrum, magnetic moments and Regge trajectories of ${\Omega }_{ccb}$ and ${\Omega }_{cbb}$ baryons in the nonrelativistic quark--diquark model
• Beauty Hadron Spectrum in a Screened Potential Model
• Theoretical results for hadronic masses and their widths in the framework of the SO(4) model
• Spectroscopy and Radiative Decays of ${\Omega }_{ccc}$ and ${\Omega }_{bbb}$ Baryons in a Quark-Diquark Model
• Mesons and Baryons: Parity Partners
• Spectroscopy of charmonium-like mesons, heavy-light mesons with charm, AdS/QCD, and configurational entropy
• Excited light baryons from quark-gluon-level calculations