Nucleon electromagnetic form factors from lattice QCD using a nearly physical pion mass

Abstract

We present lattice QCD calculations of nucleon electromagnetic form factors using pion masses $m_{\pi }$ = 149, 202, and 254 MeV and an action with clover-improved Wilson quarks coupled to smeared gauge fields, as used by the Budapest-Marseille-Wuppertal collaboration. Particular attention is given to removal of the effects of excited state contamination by calculation at three source-sink separations and use of the summation and generalized pencil-of-function methods. The combination of calculation at the nearly physical mass $m_{\pi }$ = 149 MeV in a large spatial volume ($m_{\pi }{L}_s$ = 4.2) and removal of excited state effects yields agreement with experiment for the electric and magnetic form factors $G_E(Q^2)$ and $G_M(Q^2)$ up to $Q^2$ = 0.5 GeV${}^2$.

arXiv commentv2: published version; 30 pages, 25 figures, 6 tables

References in corpus (57)

• CODATA Recommended Values of the Fundamental Physical Constants: 2010
• Impact Parameter Dependent Parton Distributions and Off-Forward Parton Distributions for $\zeta \to 0$
• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Impact Parameter Space Interpretation for Generalized Parton Distributions
• Review of lattice results concerning low energy particle physics
• Proton elastic form factor ratios to $Q^2$ = 3.5 GeV${}^2$ by polarization transfer
• Dispersion-Theoretical Analysis of the Nucleon Electromagnetic Formfactors
• On the generalized eigenvalue method for energies and matrix elements in lattice field theory
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Nucleon Generalized Parton Distributions from Full Lattice QCD
• Nucleon structure from mixed action calculations using 2+1 flavors of asqtad sea and domain wall valence fermions
• Dispersion analysis of the nucleon form factors including meson continua
• Nucleon electromagnetic form factors
• A Coherent Interpretation of the Form Factors of the Nucleon in Terms of a Pion Cloud and Constituent Quarks
• Moments of Nucleon Generalized Parton Distributions in Lattice QCD
• Lattice QCD at the physical point: Simulation and analysis details
• The Flavor Structure of the Excited Baryon Spectra from Lattice QCD
• The form factors of the nucleon at small momentum transfer
• Hadron structure from lattice quantum chromodynamics
• Precise determination of the strangeness magnetic moment of the nucleon
• The size of the proton - closing in on the radius puzzle
• The nucleon axial charge from lattice QCD with controlled errors
• Nucleon Charges and Electromagnetic Form Factors from 2+1+1-Flavor Lattice QCD
• Nucleon form factors with 2+1 flavor dynamical domain-wall fermions
• Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
• Nucleon form factors and moments of generalized parton distributions using $N_f=2+1+1$ twisted mass fermions
• Precision Electromagnetic Structure of Octet Baryons in the Chiral Regime
• Lattice Calculation of the Strangeness Magnetic Moment of the Nucleon
• Strange Electric Form Factor of the Proton
• The nucleon electromagnetic form factors from Lattice QCD
• Rationale for UV-filtered clover fermions
• Nucleon Electromagnetic Form Factors from Lattice QCD using 2+1 Flavor Domain Wall Fermions on Fine Lattices and Chiral Perturbation Theory
• Disconnected quark loop contributions to nucleon observables in lattice QCD
• Electromagnetic form factors of the nucleon: new fit and analysis of uncertainties
• Nucleon Structure from Lattice QCD Using a Nearly Physical Pion Mass
• High Statistics Analysis using Anisotropic Clover Lattices: (I) Single Hadron Correlation Functions
• Nucleon electromagnetic form factors in twisted mass lattice QCD
• Nucleon structure with two flavors of dynamical domain-wall fermions
• Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation
• Chiral Limit of Nucleon Lattice Electromagnetic Form Factors
• Variational Approach to the Calculation of gA
• Strange magnetic form factor of the proton at $Q^2=0.23$ GeV${}^2$
• Dirac and Pauli form factors from lattice QCD
• On the extraction of zero momentum form factors on the lattice
• Electric form factors of the octet baryons from lattice QCD and chiral extrapolation
• The OLYMPUS Experiment
• A new approach for Delta form factors
• Chiral extrapolations for nucleon electric charge radii
• Chiral extrapolations for nucleon magnetic moments
• Demonstration of a novel technique to measure two-photon exchange effects in elastic $e^{\pm }p$ scattering
• External Momentum, Volume Effects, and the Nucleon Magnetic Moment
• Measurement of the two-photon exchange contribution in elastic $ep$ scattering at VEPP-3
• Some new results in O(a) improved lattice QCD
• Lattice Results on the Connected Neutron Charge Radius
• Finite-volume corrections to charge radii
• Finite volume corrections to the electromagnetic current of the nucleon
• Baryon structure from Lattice QCD

Cited by in corpus (62)

• Baryons as relativistic three-quark bound states
• NuSTEC White Paper: Status and Challenges of Neutrino-Nucleus Scattering
• Parton distributions and lattice QCD calculations: toward 3D structure
• Extraction of the proton radius from electron-proton scattering data
• Updated Lattice Results for Parton Distributions
• Nucleon isovector couplings from $N_f=2$ lattice QCD
• Proton and neutron electromagnetic form factors from lattice QCD
• Up, down, and strange nucleon axial form factors from lattice QCD
• Measurement of the proton form factor by studying $e^{+}{e}^{-}\to p\bar{p}$
• Relativistic, model-independent, multichannel $2\to 2$ transition amplitudes in a finite volume
• Nucleon Structure from Lattice QCD Using a Nearly Physical Pion Mass
• Nucleon Tomography and Generalized Parton Distribution at Physical Pion Mass from Lattice QCD
• Nucleon form factors on a large volume lattice near the physical point in 2+1 flavor QCD
• High-precision calculation of the strange nucleon electromagnetic form factors
• Nucleon electromagnetic form factors in two-flavour QCD
• Electromagnetic form factors at large momenta from lattice QCD
• Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Unpolarized Quarks
• Nucleon electromagnetic form factors using lattice simulations at the physical point
• Measurements of Sigma+ and Sigma- Time-like Electromagnetic Form Factors for center-of-mass energies from 2.3864 to 3.0200 GeV
• Nucleon Electromagnetic Form Factors in the Continuum Limit from 2+1+1-flavor Lattice QCD
• Isovector electromagnetic form factors of the nucleon from lattice QCD and the proton radius puzzle
• Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino Program
• Moments of proton GPDs from the OPE of nonlocal quark bilinears up to NNLO
• Exotic Tetraquark states with two $\bar{b}$-quarks and $J^P=0^{+}$ and $1^{+}$ $B_s$ states in a nonperturbatively-tuned Lattice NRQCD setup
• Nucleon matrix elements using the variational method in lattice QCD
• P-wave nucleon-pion scattering amplitude in the $\Delta (1232)$ channel from lattice QCD
• Strange electromagnetic form factors of the nucleon with $N_f=2+1$ $\mathcal{O}(a)$-improved Wilson fermions
• Uncertainty Quantification in Lattice QCD Calculations for Nuclear Physics
• Model-independent determination of the nucleon charge radius from lattice QCD
• Sea Quarks Contribution to the Nucleon Magnetic Moment and Charge Radius at the Physical Point
• Precision calculation of the electromagnetic radii of the proton and neutron from lattice QCD
• Applications of Neural Networks in Hadron Physics
• Electromagnetic form factors of the nucleon from $N_f=2+1$ lattice QCD
• Strange nucleon electromagnetic form factors from lattice QCD
• Spectra and decay properties of ${\Lambda }_b$ and ${\Sigma }_b$ baryons
• Nucleon Quark Distribution Functions from the Dyson-Schwinger Equations
• The $\Sigma$ and $\Xi$ electromagnetic form factors in the extended vector meson dominance model
• Moments of Axial-Vector GPD from Lattice QCD: Quark Helicity, Orbital Angular Momentum, and Spin-Orbit Correlation
• Excited states in nucleon structure calculations
• Electromagnetic form factors of neutron and neutral stange hyperons in the oscillating view of point
• Generalized Parton Distributions: confining potential effects within AdS/QCD
• Determination of the ${\Sigma }^{+}$ Timelike Electromagnetic Form Factors
• Electromagnetic form factors of ${\Lambda }_b$ in the Bethe-Salpeter equation approach
• Constraining beyond the Standard Model nucleon isovector charges
• Measurement of $\Lambda$ transverse polarization in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=3.68-3.71$ GeV
• Chiral Effective Theory Methods and their Application to the Structure of Hadrons from Lattice QCD
• Nucleon electroweak form factors using spin-improved holographic light-front wavefunctions
• Nucleon form factors and parton distributions in nonlocal chiral effective theory
• Understanding oscillating features of the timelike nucleon electromagnetic form factors within the extending vector meson dominance model
• Hadron Structure from Lattice QCD
• Novel applications of Lattice QCD: Parton distribution functions, proton charge radius and neutron electric dipole moment
• Electromagnetic form factors of ${\Sigma }^{+}$ and ${\Sigma }^{-}$ in the vector meson dominance model
• The Structure of the Nucleon: Elastic Electromagnetic Form Factors
• Mapping Parton Distributions of Hadrons with Lattice QCD
• Excited-state effects in nucleon structure on the lattice using hybrid interpolators
• Hadron Structure and Spectrum from the Lattice
• Applying Bayesian Inference to Galileon Solutions of the Muon Problem
• Parton distribution functions from Lattice QCD
• Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Unpolarized Quarks at Nonzero Skewness
• Electromagnetic form factors of ${\Lambda }_c$ in the Bethe-Salpeter equation approach
• Observation of Transverse Polarization and Determination of Psionic Form Factors of the $\Lambda$ Hyperon at $\sqrt{s}=3.773$ GeV
• New Physics Searches from Nucleon Matrix Elements in Lattice QCD