Excited-state spectroscopy of triply-bottom baryons from lattice QCD

Abstract

The spectrum of baryons containing three b quarks is calculated in nonperturbative QCD, using the lattice regularization. The energies of ten excited bbb states with J^P = 1/2^+, 3/2^+, 5/2^+, 7/2^+, 1/2^-, and 3/2^- are determined with high precision. A domain-wall action is used for the up-, down- and strange quarks, and the bottom quarks are implemented with NRQCD. The computations are done at lattice spacings of a \approx 0.11 fm and a \approx 0.08 fm, and the results demonstrate the improvement of rotational symmetry as a is reduced. A large lattice volume of (2.7 fm)^3 is used, and extrapolations of the bbb spectrum to realistic values of the light sea-quark masses are performed. All spin-dependent energy splittings are resolved with total uncertainties of order 1 MeV, and the dependence of these splittings on the couplings in the NRQCD action is analyzed.

26 pages, 15 figures; added uncertainty due to choice of fit range; accepted by PRD

References in corpus (20)

• Heavy quarkonium: progress, puzzles, and opportunities
• Heavy Baryons in a Quark Model
• Excited state baryon spectroscopy from lattice QCD
• A novel quark-field creation operator construction for hadronic physics in lattice QCD
• Continuum Limit Physics from 2+1 Flavor Domain Wall QCD
• Magnetic moments of heavy baryons in the relativistic three-quark model
• Ground-state triply and doubly heavy baryons in a relativistic three-quark model
• Charmed baryons in a relativistic quark model
• Excited hadrons on the lattice: Baryons
• Bottomonium spectrum at order v^6 from domain-wall lattice QCD: precise results for hyperfine splittings
• Deciphering triply heavy baryons in terms of QCD sum rules
• Lattice QCD determination of patterns of excited baryon states
• Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions
• Roper Resonance in 2+1 Flavor QCD
• Variational Study of Weakly Coupled Triply Heavy Baryons
• Triply Heavy Baryons and Heavy Quark Spin Symmetry
• Production of Triply Heavy Baryons at LHC
• First results from 2+1-Flavor Domain Wall QCD: Mass Spectrum, Topology Change and Chiral Symmetry with $L_s=8$
• Prediction of the Omega_bbb mass from lattice QCD
• Charmed $(70,1^{-})$ baryon multiplet

Cited by in corpus (44)

• A review of the open charm and open bottom systems
• Charmed bottom baryon spectroscopy from lattice QCD
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Spectrum of fully-heavy tetraquarks from a diquark+antidiquark perspective
• Spectroscopy of doubly-charmed baryons from lattice QCD
• Spectroscopy of triply-charmed baryons from lattice QCD
• Spectroscopy of singly, doubly, and triply bottom baryons
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• Restoration of Rotational Symmetry in the Continuum Limit of Lattice Field Theories
• Triply-heavy baryons in a constituent quark model
• Poincaré-covariant analysis of heavy-quark baryons
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Weak Decays of Triply Heavy Baryons
• Properties of triply heavy spin--3/2 baryons
• Magnetic Moments of Baryons containing all heavy quarks in Quark-Diquark Model
• Triply charmed and bottom baryons in a constituent quark model
• Exotic Tetraquark states with two $\bar{b}$-quarks and $J^P=0^{+}$ and $1^{+}$ $B_s$ states in a nonperturbatively-tuned Lattice NRQCD setup
• Approximate Hamiltonian for baryons in heavy-flavor QCD
• Constituent-quark model description of triply heavy-baryon nonperturbative lattice QCD data
• Triply heavy baryon spectroscopy in the relativistic quark model
• Mass-spectra of singly, doubly, and triply bottom baryons
• Strongly Bound Dibaryon with Maximal Beauty Flavor from Lattice QCD
• Analysis of the triply-heavy baryon states with the QCD sum rules
• Breaking and restoration of rotational symmetry on the lattice for bound state multiplets
• Pentaquark states with the $QQQq\bar{q}$ configuration in a simple model
• Symmetries of the Three Heavy-Quark System and the Color-Singlet Static Energy at NNLL
• Heavy-baryon quark model picture from lattice QCD
• Doubly heavy baryon spectra guided by lattice QCD
• Analysis of the ${\Lambda }_c(2625)$ and ${\Xi }_c(2815)$ with QCD sum rules
• NLO effects for ${\Omega }_{QQQ}$ Baryons in QCD Sum Rules
• Breaking and restoration of rotational symmetry for irreducible tensor operators on the lattice
• ${\Xi }_{bb}$ and ${\Omega }_{bbb}$ molecular states
• Unwinding the rare $\Omega$ sector: Fragmentation of fully charmed baryons from HL-LHC to FCC
• Triply heavy baryon spectroscopy revisited
• Systematic analysis of the mass spectra of triply heavy baryons
• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Magnetic moments of spin--1/2 triply-heavy baryons: A study of Light-cone QCD and Quark-diquark model
• Beauty Hadron Spectrum in a Screened Potential Model
• Baryons and baryoniums in the perspective of QCD sum rules
• Mass spectrum, magnetic moments and Regge trajectories of ${\Omega }_{ccb}$ and ${\Omega }_{cbb}$ baryons in the nonrelativistic quark--diquark model
• Formal Developments for Lattice QCD with Applications to Hadronic Systems
• Spectroscopy and Radiative Decays of ${\Omega }_{ccc}$ and ${\Omega }_{bbb}$ Baryons in a Quark-Diquark Model
• The Beauty of Lattice Perturbation Theory: The Role of Lattice Perturbation Theory in B Physics