Baryon spectrum with $N_f=2+1+1$ twisted mass fermions

Abstract

The masses of the low lying baryons are evaluated using a total of ten ensembles of dynamical twisted mass fermion gauge configurations. The simulations are performed using two degenerate flavors of light quarks, and a strange and a charm quark fixed to approximately their physical values. The light sea quarks correspond to pseudo scalar masses in the range of about 210~MeV to 430~MeV. We use the Iwasaki improved gluonic action at three values of the coupling constant corresponding to lattice spacing $a=0.094$~fm, 0.082~fm and 0.065~fm determined from the nucleon mass. We check for both finite volume and cut-off effects on the baryon masses. We examine the issue of isospin symmetry breaking for the octet and decuplet baryons and its dependence on the lattice spacing. We show that in the continuum limit isospin breaking is consistent with zero, as expected. We performed a chiral extrapolation of the forty baryon masses using SU(2) $\chi$PT. After taking the continuum limit and extrapolating to the physical pion mass our results are in good agreement with experiment. We provide predictions for the mass of the doubly charmed ${\Xi }_{cc}^{\ast }$, as well as of the doubly and triply charmed $\Omega$s that have not yet been determined experimentally.

arXiv commentVersion as appeared in Phys. Rev. D 90, 074501 (2014); 35 pages and 27 figures

References in corpus (59)

• Ab-initio Determination of Light Hadron Masses
• Heavy Baryons in a Quark Model
• 2+1 Flavor Lattice QCD toward the Physical Point
• First Observation of the Doubly Charmed Baryon Xi_cc^+
• The QCD spectrum with three quark flavors
• Chirally improving Wilson fermions - I. O(a) improvement
• The chiral representation of the $\pi N$ scattering amplitude and the pion-nucleon sigma term
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Confirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-
• Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions
• Light hadrons from lattice QCD with light (u,d), strange and charm dynamical quarks
• Observation of New States Decaying into ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}$ and ${\Lambda }_c^{+}{K}_S^0{\pi }^{-}$
• Chirally improving Wilson fermions II. Four-quark operators
• Dynamical Twisted Mass Fermions with Light Quarks: Simulation and Analysis Details
• Lattice QCD at the physical point: Simulation and analysis details
• Up, down, strange and charm quark masses with Nf = 2+1+1 twisted mass lattice QCD
• Light hadron spectroscopy using domain wall valence quarks on an Asqtad sea
• Search for Doubly Charmed Baryons Xi_cc^+ and Xi_cc^++ in BABAR
• Decuplet Baryon Structure from Lattice QCD
• Flavour blindness and patterns of flavour symmetry breaking in lattice simulations of up, down and strange quarks
• Twisted-mass lattice QCD with mass non-degenerate quarks
• The Static Approximation of Heavy-Light Quark-Systems - A Systematic Lattice Study
• Ground-state triply and doubly heavy baryons in a relativistic three-quark model
• Sigma term and strangeness content of octet baryons
• Charmed baryons at the physical point in 2+1 flavor lattice QCD
• Charmed-Baryon Spectroscopy from Lattice QCD with N_f=2+1+1 Flavors
• Analysis of the ${\frac{1}{2}}^{+}$ doubly heavy baryon states with QCD sum rules
• Singly and Doubly Charmed J=1/2 Baryon Spectrum from Lattice QCD
• Nucleon mass and sigma term from lattice QCD with two light fermion flavors
• Pseudoscalar decay constants of kaon and D-mesons from Nf=2 twisted mass Lattice QCD
• Tuning the strange quark mass in lattice simulations
• Light baryon masses with dynamical twisted mass fermions
• Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations
• Nucleon mass: from lattice QCD to the chiral limit
• The low-lying baryon spectrum with two dynamical twisted mass fermions
• The nucleon mass and pion-nucleon sigma term from a chiral analysis of lattice QCD world data
• Disconnected quark loop contributions to nucleon observables in lattice QCD
• The lowest-lying baryon masses in covariant SU(3)-flavor chiral perturbation theory
• Hyperon sigma terms for 2+1 quark flavours
• The strange and light quark contributions to the nucleon mass from Lattice QCD
• Reducing cutoff effects in maximally twisted lattice QCD close to the chiral limit
• Chiral Extrapolations and the Covariant Small Scale Expansion
• Spin-3/2 Nucleon and Delta Baryons in Lattice QCD
• On finite volume effects in the chiral extrapolation of baryon masses
• The nucleon and Delta-resonance masses in relativistic chiral effective-field theory
• Strange and charm baryon masses with two flavors of dynamical twisted mass fermions
• Strangeness in the baryon ground states
• Strong Isospin Breaking in the Nucleon and Delta Masses on the Lattice
• Hyperons in Two Flavor Chiral Perturbation Theory
• Meson and Baryon dispersion relations with Brillouin fermions
• Baryon masses, chiral extrapolations, and all that
• Strange quarks in quenched twisted mass lattice QCD
• Charmed hadron spectroscopy on the lattice for $N_f=2+1$ flavours
• Decuplet baryon masses in covariant baryon chiral perturbation theory
• The mass of the Delta resonance in a finite volume: fourth-order calculation
• Light quark masses and pseudoscalar decay constants from Nf=2 Lattice QCD with twisted mass fermions
• Nucleon structure from lattice QCD - recent achievements and perspectives
• One-loop lattice artifacts of a dynamical charm quark
• Lattice QCD with a twisted mass term and a strange quark

Cited by in corpus (111)

• FLAG Review 2019
• FLAG Review 2021
• Baryons as relativistic three-quark bound states
• A review of the open charm and open bottom systems
• NuSTEC White Paper: Status and Challenges of Neutrino-Nucleus Scattering
• Charmed bottom baryon spectroscopy from lattice QCD
• Baryons with two heavy quarks: Masses, production, decays, and detection
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Roy-Steiner-equation analysis of pion-nucleon scattering
• 50 Years of Quantum Chromodynamics
• A Lattice Calculation of Parton Distributions
• Discovery Potentials of Doubly Charmed Baryons
• Towards simulating 2D effects in lattice gauge theories on a quantum computer
• Up-, down-, strange-, charm-, and bottom-quark masses from four-flavor lattice QCD
• Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
• $\pi$N and strangeness sigma terms at the physical point with chiral fermions
• Charmed baryon spectroscopy and light flavour symmetry from lattice QCD
• Direct Evaluation of the Quark Content of Nucleons from Lattice QCD at the Physical Point
• Mass spectra and Regge trajectories of ${\Lambda }_c^{+}$, ${\Sigma }_c^0$, ${\Xi }_c^0$ and ${\Omega }_c^0$ Baryons
• Simulating twisted mass fermions at physical light, strange and charm quark masses
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Direct determinations of the nucleon and pion $\sigma$ terms at nearly physical quark masses
• First Physics Results at the Physical Pion Mass from $N_f=2$ Wilson Twisted Mass Fermions at Maximal Twist
• Excited State Mass spectra of Singly Charmed Baryons
• Excited state mass spectra of doubly heavy $\Xi$ baryons
• Low-lying baryon masses using $N_f=2$ twisted mass clover-improved fermions directly at the physical point
• On light baryons and their excitations
• FLAG Review 2024
• Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons
• PANDA Phase One
• Chiral observables and topology in hot QCD with two families of quarks
• Masses of doubly and triply charmed baryons
• Masses of Doubly Heavy Tetraquarks with Error Bars
• A look inside charmed-strange baryons from lattice QCD
• Dibaryon with highest charm number near unitarity from lattice QCD
• Challenges in Semileptonic B Decays
• Short-distance charmonium correlator on the lattice with Möbius domain-wall fermion and a determination of charm quark mass
• Quark masses using twisted mass fermion gauge ensembles
• The last Complex WIMPs standing
• The Role of Lattice QCD in Searches for Violations of Fundamental Symmetries and Signals for New Physics
• Charmed baryon spectrum from lattice QCD near the physical point
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• Isospin splittings in baryons with two heavy quarks
• Doubly-Heavy Baryon Weak Decays: ${\Xi }_{bc}^0\to p{K}^{-}$ and ${\Xi }_{cc}^{+}\to {\Sigma }_c^{++}(2520)K^{-}$
• The pion-nucleon sigma term from lattice QCD
• Hidden charm pentaquarks: mass spectrum, magnetic moments, and photocouplings
• Triply charmed and bottom baryons in a constituent quark model
• Non-perturbative quark mass renormalisation and running in $N_f=3$ QCD
• On the convergence of the chiral expansion for the baryon ground-state masses
• ${\Xi }_c\gamma \to {\Xi }_c^{\prime }$ transition in lattice QCD
• Gluon momentum fraction of the nucleon from lattice QCD
• Radiative transitions of doubly charmed baryons in lattice QCD
• ${\Omega }_c\gamma \to {\Omega }_c^{\ast }$ transition in lattice QCD
• Approximate Hamiltonian for baryons in heavy-flavor QCD
• Pion-nucleon sigma term revisited in covariant baryon chiral perturbation theory
• Triply heavy baryon spectroscopy in the relativistic quark model
• Waves along fractal coastlines: From fractal arithmetic to wave equations
• Lifetimes of singly charmed hadrons
• Continuum limit of the $D$ meson, $D_s$ meson and charmonium spectrum from $N_f=2+1+1$ twisted mass lattice QCD
• On the role of isospin violation in the pion-nucleon $\sigma$-term
• Axial charges of hyperons and charmed baryons using $N_f=2+1+1$ twisted mass fermions
• Strange baryons with two heavy quarks
• Ground and Excited state masses of ${\Omega }_c^0$, ${\Omega }_{cc}^{+}$ and ${\Omega }_{ccc}^{++}$ baryons
• Finite temperature gluon spectral functions from $N_f=2+1+1$ lattice QCD
• The Status of ${\Xi }_{cc}^{++}$ Baryon: investigating quark-diquark model
• Ruling Out the Massless Up-Quark Solution to the Strong CP Problem by Computing the Topological Mass Contribution with Lattice QCD
• Scale setting the Möbius Domain Wall Fermion on gradient-flowed HISQ action using the omega baryon mass and the gradient-flow scales $t_0$ and $w_0$
• Nucleon Sigma Terms with $N_f=2+1$ O($a$)-improved Wilson fermions
• Search for the doubly charmed baryon ${\Xi }_{cc}^{+}$ in the ${\Xi }_c^{+}{\pi }^{-}{\pi }^{+}$ final state
• Effective field theory for double heavy baryons at strong coupling
• Mass spectra of ${\Xi }_{cc}$, ${\Xi }_{bc}$, ${\Omega }_{cc}$, and ${\Omega }_{bc}$ baryons in Regge Phenomenology
• Effective QCD string and doubly heavy baryons
• Effective theory tower for $\mu \to e$ conversion
• Spectra and decay properties of ${\Lambda }_b$ and ${\Sigma }_b$ baryons
• Strong coupling constant and quark masses from lattice QCD
• Next-to-leading order scalar contributions to $\mu \to e$ conversion
• Perturbative Corrections to Heavy Quark-Diquark Symmetry Predictions for Doubly Heavy Baryon Hyperfine Splittings
• Lattice QCD study of the elastic and transition form factors of charmed baryons
• Baryon masses and σ-terms in SU(3) BChPT x 1/Nc
• NLO effects for ${\Omega }_{QQQ}$ Baryons in QCD Sum Rules
• On a first order transition in QCD with up, down and strange quarks
• Quark-diquark potential and diquark mass from Lattice QCD
• ${\Lambda }_c{\Sigma }_c\pi$ coupling and ${\Sigma }_c\to {\Lambda }_c\pi$ decay in lattice QCD
• Towards the quark--gluon plasma Equation of State with dynamical strange and charm quarks
• Nucleon form factors and parton distributions in nonlocal chiral effective theory
• Nucleon Mass with Highly Improved Staggered Quarks
• Improved Standard-Model prediction for $K_L\to {\ell }^{+}{\ell }^{-}$
• Baryon Chiral Perturbation Theory combined with the $1/{\mathbf{N}}_{\mathbf{c}}$ Expansion in SU(3) I: Framework
• Baryon masses estimate in heavy flavor QCD
• Triply heavy baryon spectroscopy revisited
• The temperature dependence of the chiral condensate in the Schwinger model with Matrix Product States
• Light Hadron Masses from a Matrix Model for QCD
• QCD Anderson transition with overlap valence quarks on a twisted-mass sea
• Heavy baryon spectroscopy in a quark-diquark approach
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Electromagnetic Structure of Spin-$\frac{1}{2}$ Doubly Charmed Baryons in Lattice QCD
• Conditions for Suppressing Dimension-five Proton Decay in Renormalizable SUSY $SO(10)$ GUT
• Magnetic moments of spin--1/2 triply-heavy baryons: A study of Light-cone QCD and Quark-diquark model
• First moment of the flavour octet nucleon parton distribution function using lattice QCD
• Low-energy constants from charmed baryons on QCD lattices
• Effective Field Theories and Lattice QCD
• Leading Isospin Breaking effects in nucleon and $\Delta$ masses
• Closing the window on WIMP Dark Matter
• Mass spectrum, magnetic moments and Regge trajectories of ${\Omega }_{ccb}$ and ${\Omega }_{cbb}$ baryons in the nonrelativistic quark--diquark model
• Hyper Stealth Dark Matter and Long-Lived Particles
• Study of the mass spectra of doubly heavy ${\Xi }_{Q{Q}^{\prime }}$ and ${\Omega }_{Q{Q}^{\prime }}$ baryons
• Charmed states and flavour symmetry breaking
• Doubly heavy baryons in Born-Oppenheimer EFT
• Nucleon mass: trace anomaly and $\sigma$-terms
• Comment on "Neutron lifetime and dark decay of the neutron and hydrogen''
• Spectroscopy and Radiative Decays of ${\Omega }_{ccc}$ and ${\Omega }_{bbb}$ Baryons in a Quark-Diquark Model