Lattice QCD ensembles with four flavors of highly improved staggered quarks

Abstract

We present results from our simulations of quantum chromodynamics (QCD) with four flavors of quarks: u, d, s, and c. These simulations are performed with a one-loop Symanzik improved gauge action, and the highly improved staggered quark (HISQ) action. We are generating gauge configurations with four values of the lattice spacing ranging from 0.06 fm to 0.15 fm, and three values of the light quark mass, including the value for which the Goldstone pion mass is equal to the physical pion mass. We discuss simulation algorithms, scale setting, taste symmetry breaking, and the autocorrelations of various quantities. We also present results for the topological susceptibility which demonstrate the improvement of the HISQ configurations relative to those generated earlier with the asqtad improved staggered action.

43 pages, 11 postscript figures, 15 tables, minor changes in text, version published in Phys. Rev. D

References in corpus (18)

• Highly Improved Staggered Quarks on the Lattice, with Applications to Charm Physics
• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Accelerating Dynamical Fermion Computations using the Rational Hybrid Monte Carlo (RHMC) Algorithm with Multiple Pseudofermion Fields
• Update: Precision D_s decay constant from full lattice QCD using very fine lattices
• Scaling studies of QCD with the dynamical HISQ action
• High-Precision Charm-Quark Mass and QCD Coupling from Current-Current Correlators in Lattice and Continuum QCD
• $D\to K,l\nu$ Semileptonic Decay Scalar Form Factor and $|V_{cs}|$ from Lattice QCD
• Staggered Chiral Perturbation Theory and the Fourth-Root Trick
• Precise B, B_s and B_c meson spectroscopy from full lattice QCD
• Renormalization-group analysis of the validity of staggered-fermion QCD with the fourth-root recipe
• Accelerating Staggered Fermion Dynamics with the Rational Hybrid Monte Carlo (RHMC) Algorithm
• Radiative corrections to the lattice gluon action for highly improved staggered quarks (HISQ) and the effect of such corrections on the static potential
• Comment on "Chiral anomalies and rooted staggered fermions"
• 't Hooft vertices, partial quenching, and rooted staggered QCD
• Leptonic decay-constant ratio f_{K^+}/f_{pi^+} from lattice QCD with physical light quarks
• Unquenching effects on the coefficients of the Lüscher-Weisz action
• The rooting issue for a lattice fermion formulation similar to staggered fermions but without taste mixing
• Staggered Chiral Perturbation Theory for All-Staggered Heavy-Light Mesons

Cited by in corpus (205)

• FLAG Review 2019
• FLAG Review 2021
• QCD and strongly coupled gauge theories: challenges and perspectives
• Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
• NuSTEC White Paper: Status and Challenges of Neutrino-Nucleus Scattering
• $B$- and $D$-meson leptonic decay constants from four-flavor lattice QCD
• The $B\to D\ell \nu$ form factors at nonzero recoil and $|V_{cb}|$ from $2+1$-flavor lattice QCD
• Nucleon Helicity and Transversity Parton Distributions from Lattice QCD
• Flavor Structure of the Nucleon Sea from Lattice QCD
• A percent-level determination of the nucleon axial coupling from Quantum Chromodynamics
• 50 Years of Quantum Chromodynamics
• Study of doubly heavy tetraquarks in Lattice QCD
• The topological susceptibility in finite temperature QCD and axion cosmology
• Deuterium target data for precision neutrino-nucleus cross sections
• A guide to light-cone PDFs from Lattice QCD: an overview of approaches, techniques and results
• Vus from pi and K decay constants in full lattice QCD with physical u, d, s and c quarks
• $B_{(s)}^0$-mixing matrix elements from lattice QCD for the Standard Model and beyond
• Parton distributions and lattice QCD calculations: toward 3D structure
• High-precision quark masses and QCD coupling from $n_f=4$ lattice QCD
• $|V_{ub}|$ from $B\to \pi \ell \nu$ decays and (2+1)-flavor lattice QCD
• Pion Distribution Amplitude from Lattice QCD
• Axial, Scalar and Tensor Charges of the Nucleon from 2+1+1-flavor Lattice QCD
• Axion phenomenology and $\theta$-dependence from $N_f=2+1$ lattice QCD
• Isovector Charges of the Nucleon from 2+1+1-flavor Lattice QCD
• Charmed and light pseudoscalar meson decay constants from four-flavor lattice QCD with physical light quarks
• Neutral B-meson mixing from full lattice QCD at the physical point
• Parton Distribution Function with Non-perturbative Renormalization from Lattice QCD
• Neutron Electric Dipole Moment and Tensor Charges from Lattice QCD
• B-meson decay constants: a more complete picture from full lattice QCD
• $B\to K{l}^{+}{l}^{-}$ decay form factors from three-flavor lattice QCD
• Iso-vector and Iso-scalar Tensor Charges of the Nucleon from Lattice QCD
• Hadronic-vacuum-polarization contribution to the muon's anomalous magnetic moment from four-flavor lattice QCD
• Precise predictions of charmed-bottom hadrons from lattice QCD
• Nucleon Charges and Electromagnetic Form Factors from 2+1+1-Flavor Lattice QCD
• First direct lattice-QCD calculation of the $x$-dependence of the pion parton distribution function
• Quantum Numbers of Recently Discovered ${\Omega }_c^0$ Baryons from Lattice QCD
• Axial Vector Form Factors of the Nucleon from Lattice QCD
• Up-, down-, strange-, charm-, and bottom-quark masses from four-flavor lattice QCD
• Direct determination of the strange and light quark condensates from full lattice QCD
• Axial Vector Form Factors from Lattice QCD that Satisfy the PCAC Relation
• Strong-isospin-breaking correction to the muon anomalous magnetic moment from lattice QCD at the physical point
• Flavor diagonal tensor charges of the nucleon from 2+1+1 flavor lattice QCD
• Proton Isovector Helicity Distribution on the Lattice at Physical Pion Mass
• The ${\rm Y}$ and ${{\rm Y}}^{\prime }$ Leptonic Widths, $a_{\mu }^b$ and $m_b$ from full lattice QCD
• A Hybrid Renormalization Scheme for Quasi Light-Front Correlations in Large-Momentum Effective Theory
• The Search for Beauty-fully Bound Tetraquarks Using Lattice Non-Relativistic QCD
• Pion generalized parton distribution from lattice QCD
• Precision Nucleon Charges and Form Factors Using 2+1-flavor Lattice QCD
• The hadronic vacuum polarization contribution to $a_{\mu }$ from full lattice QCD
• $B_s\to D_s\ell \nu$ Form Factors for the full $q^2$ range from Lattice QCD with non-perturbatively normalized currents
• Improved Parton Distribution Functions at Physical Pion Mass
• $B\to K$ and $D\to K$ form factors from fully relativistic lattice QCD
• Pion and Kaon Distribution Amplitudes from Lattice QCD
• Nonperturbative Determination of Collins-Soper Kernel from Quasi Transverse-Momentum Dependent Wave Functions
• Valence-Quark Distribution of the Kaon and Pion from Lattice QCD
• FLAG Review 2024
• Lattice QCD calculation of the Collins-Soper kernel from quasi TMDPDFs
• Charmonium properties from lattice QCD + QED: hyperfine splitting, $J/\psi$ leptonic width, charm quark mass and $a_{\mu }^c$
• Nucleon Tomography and Generalized Parton Distribution at Physical Pion Mass from Lattice QCD
• Heavy physics contributions to neutrinoless double beta decay from QCD
• Strange and charm quark contributions to the anomalous magnetic moment of the muon
• Lattice QCD calculation of the $B_{(s)}\to D_{(s)}^{\ast }\ell \nu$ form factors at zero recoil and implications for $|V_{cb}|$
• Pion and Kaon Distribution Amplitudes in the Continuum Limit
• Standard Model predictions for $B\to K{\ell }^{+}{\ell }^{-}$, $B\to K{\ell }_1^{-}{\ell }_2^{+}$ and $B\to K\nu \bar{\nu }$ using form factors from $N_f=2+1+1$ lattice QCD
• Topology in full QCD at high temperature: a multicanonical approach
• On the Feynman-Hellmann Theorem in Quantum Field Theory and the Calculation of Matrix Elements
• New methods for B meson decay constants and form factors from lattice NRQCD
• Challenges in Semileptonic B Decays
• Light-quark connected intermediate-window contributions to the muon $g-2$ hadronic vacuum polarization from lattice QCD
• Self-Renormalization of Quasi-Light-Front Correlators on the Lattice
• Gradient flow and scale setting on MILC HISQ ensembles
• Lattice QCD at the physical point meets SU(2) chiral perturbation theory
• Isovector parton distribution functions of the proton on a superfine lattice
• Deuteron-like heavy dibaryons from Lattice QCD
• Recent developments in SU(3) covariant baryon chiral perturbation theory
• Nucleon Electromagnetic Form Factors in the Continuum Limit from 2+1+1-flavor Lattice QCD
• The muon anomalous magnetic moment with staggered fermions: is the lattice spacing small enough?
• Nucleon Helicity Generalized Parton Distribution at Physical Pion Mass from Lattice QCD
• $B\to \pi \ell \ell$ form factors for new-physics searches from lattice QCD
• Controlling Excited-State Contamination in Nucleon Matrix Elements
• Quark contribution to the proton spin from 2+1+1-flavor lattice QCD
• Status of Lattice QCD Determination of Nucleon Form Factors and their Relevance for the Few-GeV Neutrino Program
• $B_c\to J/\psi$ Form Factors for the full $q^2$ range from Lattice QCD
• Distribution Amplitudes of $K^{\ast }$ and $\varphi$ at Physical Pion Mass from Lattice QCD
• Lattice QCD form factor for $B_s\to D_s^{\ast }l\nu$ at zero recoil with non-perturbative current renormalisation
• $B_s\to K\ell \nu$ decay from lattice QCD
• $|V_{us}|$ from $K_{\ell 3}$ decay and four-flavor lattice QCD
• V_cs from D_s to ϕlν semileptonic decay and full lattice QCD
• Lattice QCD study of doubly-charmed strange baryons
• Determination of $|V_{us}|$ from a lattice-QCD calculation of the $K\to \pi \ell \nu$ semileptonic form factor with physical quark masses
• The pion-nucleon sigma term from lattice QCD
• Lattice computation of the electromagnetic contributions to kaon and pion masses
• Lattice Calculation of the Intrinsic Soft Function and the Collins-Soper Kernel
• Determination of quark masses from ${\mathbf{n}}_{\mathbf{f}}=4$ lattice QCD and the RI-SMOM intermediate scheme
• $F_K/F_{\pi }$ from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles
• Scale setting and the light baryon spectrum in $N_f=2+1$ QCD with Wilson fermions
• Precision Control in Lattice Calculation of $x$-dependent Pion Distribution Amplitude
• Renormalization of transverse-momentum-dependent parton distribution on the lattice
• Contribution of the QCD $\Theta$-term to nucleon electric dipole moment
• An accurate calculation of the nucleon axial charge with lattice QCD
• The size of the pion from full lattice QCD with physical $u$, $d$, $s$ and $c$ quarks
• Relations between Heavy-light Meson and Quark Masses
• Singlet vs Nonsinglet Perturbative Renormalization of Fermion Bilinears
• Strongly Bound Dibaryon with Maximal Beauty Flavor from Lattice QCD
• The pseudoscalar meson electromagnetic form factor at high $Q^2$ from full lattice QCD
• Machine-Learning Prediction for Quasi-PDF Matrix Elements
• $B_c\to B_{s(d)}$ form factors from lattice QCD
• $B\to \pi \ell \nu$ at zero recoil from lattice QCD with physical $u/d$ quarks
• Moments of nucleon isovector structure functions in $2+1+1$-flavor QCD
• First Glimpse into the Kaon Gluon Parton Distribution Using Lattice QCD
• Shallow Bound States and Hints for Broad Resonances with Quark Content $\bar{b}\bar{c}ud$ in $B$-$\bar{D}$ and $B^{\ast }$-$\bar{D}$ Scattering from Lattice QCD
• Decuplet baryon masses in covariant baryon chiral perturbation theory
• Probing nucleon strange and charm distributions with lattice QCD
• Bound isoscalar axial-vector $bc\bar{u}\bar{d}$ tetraquark $T_{bc}$ from lattice QCD using two-meson and diquark-antidiquark variational basis
• Machine Learning Estimators for Lattice QCD Observables
• Leptonic decay-constant ratio f_{K^+}/f_{pi^+} from lattice QCD with physical light quarks
• Uncertainty Quantification in Lattice QCD Calculations for Nuclear Physics
• D-meson semileptonic decays to pseudoscalars from four-flavor lattice QCD
• Improved $V_{cs}$ determination using precise lattice QCD form factors for $D\to K\ell \nu$
• Virtual decuplet effects on octet baryon masses in covariant baryon chiral perturbation theory
• $B_s\to D_s^{\ast }$ Form Factors for the full $q^2$ range from Lattice QCD
• RI/MOM renormalization of the quasi-PDF in lattice regularization
• Ruling Out the Massless Up-Quark Solution to the Strong CP Problem by Computing the Topological Mass Contribution with Lattice QCD
• Möbius domain-wall fermions on gradient-flowed dynamical HISQ ensembles
• Pion Valence-Quark Generalized Parton Distribution at Physical Pion Mass
• 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 $w_0$
• Precise determination of decay rates for ${\eta }_c\to \gamma \gamma$, $J/\psi \to \gamma {\eta }_c$ and $J/\psi \to {\eta }_c{e}^{+}{e}^{-}$ from lattice QCD
• Lattice QCD Inputs for Nuclear Double Beta Decay
• Renormalising vector currents in lattice QCD using momentum-subtraction schemes
• Lattice QCD matrix elements for the $B_s^0-{\bar{B}}_s^0$ width difference beyond leading order
• Gluon Parton Distribution of the Nucleon from 2+1+1-Flavor Lattice QCD in the Physical-Continuum Limit
• Effects of non-equilibrated topological charge distributions on pseudoscalar meson masses and decay constants
• Nonperturbative comparison of clover and HISQ quarks in lattice QCD and the properties of the phi meson
• Bottomonium precision tests from full lattice QCD: hyperfine splitting, ${\rm Y}$ leptonic width and $b$ quark contribution to $e^{+}{e}^{-}\to$ hadrons
• Pion Valence Quark Distribution at Physical Pion mass of $N_f=2+1+1$ Lattice QCD
• Study of isoscalar scalar $bc\bar{u}\bar{d}$ tetraquark $T_{bc}$ from lattice QCD
• Strong coupling constant and quark masses from lattice QCD
• Renormalisation of the tensor current in lattice QCD and the $J/\psi$ tensor decay constant
• Systematic Improvement of $x$-dependent Unpolarized Nucleon Generalized Parton Distribution in Lattice-QCD Calculation
• Chiral Perturbation Theory for All-Staggered Heavy-Light Mesons
• Impact of Lattice Strangeness Asymmetry Data in the CTEQ-TEA Global Analysis
• Study of three-flavored heavy dibaryons using lattice QCD
• Kaon Distribution Amplitude from Lattice QCD and the Flavor SU(3) Symmetry
• Determination of ${\overline{m}}_b/{\overline{m}}_c$ and ${\overline{m}}_b$ from $n_f=4$ lattice QCD$+$QED
• Form factors for the processes $B_c^{+}\to D^0{\ell }^{+}{\nu }_{\ell }$ and $B_c^{+}\to D_s^{+}{\ell }^{+}{\ell }^{-}(\nu \overline{\nu })$ from lattice QCD
• Nucleon Helicity Parton Distribution Function in the Continuum Limit with Self-Renormalization
• Higher-order hadronic-vacuum-polarization contribution to the muon g-2 from lattice QCD
• Static Energy in ($2+1+1$)-Flavor Lattice QCD: Scale Setting and Charm Effects
• Spectral-weight sum rules for the hadronic vacuum polarization
• Baryon chiral perturbation theory with Wilson fermions up to $\mathcal{O}(a^2)$ and discretization effects of latest $n_f=2+1$ LQCD octet baryon masses
• Variational method with staggered fermions
• Toward accurate form factors for $B$-to-light meson decay from lattice QCD
• Nonperturbatively Renormalized Nucleon Gluon Momentum Fraction in the Continuum Limit of $N_f=2+1+1$ Lattice QCD
• Neutral B Mixing in Staggered Chiral Perturbation Theory
• Semileptonic Kaon Decay in Staggered Chiral Perturbation Theory
• Efficient integration of gradient flow in lattice gauge theory and properties of low-storage commutator-free Lie group methods
• Detailed analysis of excited state systematics in a lattice QCD calculation of $g_A$
• Perturbative renormalization functions of local operators for staggered fermions with stout improvement
• Nucleon Mass with Highly Improved Staggered Quarks
• Novel applications of Lattice QCD: Parton distribution functions, proton charge radius and neutron electric dipole moment
• $bb\bar{u}\bar{d}$ and $bs\bar{u}\bar{d}$ tetraquarks from lattice QCD using two-meson and diquark-antidiquark variational basis
• Spectrum of two-flavored spin-zero heavy dibaryons in lattice QCD
• B-meson mixing from full lattice QCD with physical u, d, s and c quarks
• Lattice-QCD Determination of the Hyperon Axial Couplings in the Continuum Limit
• Twisted finite-volume corrections to $K_{l3}$ decays with partially-quenched and rooted-staggered quarks
• Distance between various discretized fermion actions
• RI/MOM and RI/SMOM renormalization of quark bilinear operators using overlap fermions
• Disconnected Loop Subtraction Methods in Lattice QCD
• Radial and orbital excitation energies of charmonium
• QED interaction effects on heavy meson masses from lattice QCD+QED
• Symanzik flow on HISQ ensembles
• Update on the 2+1+1 flavor QCD equation of state with HISQ
• Strong coupling and quark masses from lattice QCD
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Charmed and light pseudoscalar meson decay constants from HISQ simulations
• K semileptonic form factor with HISQ fermions at the physical point
• Light meson form factors at high $Q^2$ from lattice QCD
• On the Determination of Elastic and Inelastic Nuclear Observables from Lattice QCD
• Lattice Calculations of B to K/K*l+l- form factors
• Quark Flavor Physics Review
• Disconnected Quark Loop Contributions to Nucleon Structure
• Neural network expansion of Euclidean path integrals and its application to interacting scalar fields
• Effective Field Theories and Lattice QCD
• Lattice QCD Study of Positive Parity Dibaryons with Maximal Charm and Strangeness
• Report of the Snowmass 2013 Computing Frontier working group on Lattice Field Theory -- Lattice field theory for the energy and intensity frontiers: Scientific goals and computing needs
• Constraints on axion-like particles using lattice QCD calculations of the rate for $J/\psi \to \gamma a$
• Leptonic decays of $B_{(s)}$ and $D_{(s)}$ using the OK action
• Calculation of the Nucleon Axial Form Factor Using Staggered Lattice QCD
• Collins-Soper kernel from lattice QCD at the physical pion mass
• Decay constants $f_B$ and $f_{B_s}$ and quark masses $m_b$ and $m_c$ from HISQ simulations
• $D$-meson semileptonic form factors at zero momentum transfer in (2+1+1)-flavor lattice QCD
• Current progress on the semileptonic form factors for $\bar{B}\to D^{\ast }\ell \bar{\nu }$ decay using the Oktay-Kronfeld action
• $B$-meson semileptonic form factors on (2+1+1)-flavor HISQ ensembles
• Kaon semileptonic decays with $N_f=2+1+1$ HISQ fermions and physical light-quark masses
• Gradient Flow Analysis on MILC HISQ Ensembles
• Nuclear correlation functions using first-principle calculations of lattice quantum chromodynamics
• Decay constants $f_B$ and $f_{B_s}$ from HISQ simulations
• Singlet vs Nonsinglet Perturbative Renormalization factors of Staggered Fermion Bilinears
• Hadron spectra and Delta_{mix} from overlap quarks on a HISQ sea
• Quark mass determinations with the RI-SMOM scheme and HISQ action
• Investigating some technical improvements to glueball calculations
• The two-pion contribution to the hadronic vacuum polarization with staggered quarks
• Recent Progress in Lattice QCD
• Flavor Physics and Lattice QCD
• Vector current renormalisation in momentum subtraction schemes using the HISQ action