Dynamical Twisted Mass Fermions with Light Quarks

Abstract

We present results of dynamical simulations with 2 flavours of degenerate Wilson twisted mass quarks at maximal twist in the range of pseudo scalar masses from 300 to 550 MeV. The simulations are performed at one value of the lattice spacing a \lesssim 0.1 fm. In order to have O(a) improvement and aiming at small residual cutoff effects, the theory is tuned to maximal twist by requiring the vanishing of the untwisted quark mass. Precise results for the pseudo scalar decay constant and the pseudo scalar mass are confronted with chiral perturbation theory predictions and the low energy constants F, \bar{l}_3 and \bar{l}_4 are evaluated with small statistical errors.

17 pages, 5 figures, references added, typos corrected

References in corpus (44)

• The Chroma Software System for Lattice QCD
• Chirally improving Wilson fermions - I. O(a) improvement
• Monte Carlo errors with less errors
• Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions
• Chirally improving Wilson fermions II. Four-quark operators
• Finite volume effects for meson masses and decay constants
• Schwarz-preconditioned HMC algorithm for two-flavour lattice QCD
• HMC algorithm with multiple time scale integration and mass preconditioning
• Decay width of light quark hybrid meson from the lattice
• Speeding up Lattice QCD simulations with clover-improved Wilson Fermions
• Stability of lattice QCD simulations and the thermodynamic limit
• Twisted mass chiral perturbation theory at next-to-leading order
• The phase diagram of twisted mass lattice QCD
• Reducing cutoff effects in maximally twisted lattice QCD close to the chiral limit
• Scaling test for Wilson twisted mass QCD
• Improving the Chiral Properties of Lattice Fermions
• Pion mass splitting and phase structure in Twisted Mass QCD
• On the phase structure of twisted mass lattice QCD
• Twisted-mass QCD, O(a) improvement and Wilson chiral perturbation theory
• The phase structure of lattice QCD with two flavours of Wilson quarks and renormalization group improved gluons
• Twisted mass quarks and the phase structure of lattice QCD
• Chiral perturbation theory for lattice QCD with a twisted mass term
• Actions for dynamical fermion simulations: are we ready to go?
• Universality and scaling behavior of RG gauge actions
• Twisted mass QCD and lattice approaches to the $\Delta I=1/2$ rule
• Spectrum of quenched twisted mass lattice QCD at maximal twist
• A numerical reinvestigation of the Aoki phase with N_f=2 Wilson fermions at zero temperature
• Accelerating the Hybrid Monte Carlo algorithm
• Flavour Breaking Effects of Wilson twisted mass fermions
• Lattice Spacing Dependence of the First Order Phase Transition for Dynamical Twisted Mass Fermions
• Observations on discretization errors in twisted-mass lattice QCD
• Light quarks with twisted mass fermions
• Exploring the phase structure of lattice QCD with twisted mass quarks
• A precise determination of $B_K$ in quenched QCD
• Numerical simulations with two flavours of twisted-mass Wilson quarks and DBW2 gauge action
• Multiple molecular dynamics time-scales in Hybrid Monte Carlo fermion simulations
• Exploring twisted mass Lattice QCD with the Clover term
• Bulk first-order phase transition in three-flavor lattice QCD with $O(a)$-improved Wilson fermion action at zero temperature
• Nucleon and Delta masses in twisted mass chiral perturbation theory
• A scaling study of the step scaling function in SU(3) gauge theory with improved gauge actions
• The Aoki phase for N_f=2 Wilson fermions revisited
• Chiral perturbation theory for twisted mass QCD
• Nf=2 Lattice QCD and Chiral Perturbation Theory
• Two--dimensional lattice Gross--Neveu model with Wilson twisted mass fermions

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• Three-Nucleon Low-Energy Constants from the Consistency of Interactions and Currents in Chiral Effective Field Theory
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• Resonance Parameters of the rho-Meson from Lattice QCD
• Light Meson Physics from Maximally Twisted Mass Lattice QCD
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• Non-perturbative renormalization of quark bilinear operators with Nf=2 (tmQCD) Wilson fermions and the tree-level improved gauge action
• Lattice QCD and QCD Sum Rule determination of the decay constants of eta_c, J/psi and hc states
• Nucleon and pion structure with lattice QCD simulations at physical value of the pion mass
• Pseudoscalar decay constants of kaon and D-mesons from Nf=2 twisted mass Lattice QCD
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• Light baryon masses with dynamical twisted mass fermions
• Determination of light quark masses from the electromagnetic splitting of pseudoscalar meson masses computed with two flavors of domain wall fermions
• Hadronic unquenching effects in the quark propagator
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• The low-lying baryon spectrum with two dynamical twisted mass fermions
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• B-physics from Nf=2 tmQCD: the Standard Model and beyond
• Varying the light quark mass: impact on the nuclear force and Big Bang nucleosynthesis
• Average up/down, strange and charm quark masses with Nf=2 twisted mass lattice QCD
• Electromagnetic form factor of the pion from twisted-mass lattice QCD at Nf=2
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• FLAG Review 2024
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• Chiral extrapolation of light resonances from one and two-loop unitarized Chiral Perturbation Theory versus lattice results
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• Low energy constants of \chiPT from the instanton vacuum model
• Non-perturbative renormalization in coordinate space for $N_f=2$ maximally twisted mass fermions with tree-level Symanzik improved gauge action
• O(a^2) cutoff effects in lattice Wilson fermion simulations
• Parameters of the lowest order chiral Lagrangian from fermion eigenvalues
• The pion-pion Interaction in the rho Channel in Finite Volume
• Chiral extrapolation of pion-pion scattering phase shifts within standard and unitarized Chiral Perturbation Theory
• Determination of ${\Lambda }_{\overline{\text{MS}}}^{(n_f=2)}$ and analytic parameterization of the static quark-antiquark potential
• Nucleon scalar and tensor charges using lattice QCD simulations at the physical value of the pion mass
• Importance of meson-meson and of diquark-antidiquark creation operators for a $\bar{b}\bar{b}ud$ tetraquark
• Hadron masses in QCD with one quark flavour
• ${\Lambda }_{\overline{\text{MS}}}^{(n_f=2)}$ from a momentum space analysis of the quark-antiquark static potential
• Phase Diagram of Dynamical Twisted Mass Wilson Fermions at Finite Isospin Chemical Potential
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• Determination of Low-Energy Constants of Wilson Chiral Perturbation Theory
• Renormalisation of quark propagators from twisted-mass lattice QCD at $N_f$=2
• Constraint on the Low Energy Constants of Wilson Chiral Perturbation Theory
• Quark mass and chiral condensate from the Wilson twisted mass lattice quark propagator
• Kaon Mixing Beyond the SM from Nf=2 tmQCD and model independent constraints from the UTA
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• Lattice QCD estimate of the ${\eta }_c(2S)\to J/\psi \gamma$ decay rate
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• pi-pi Scattering in Twisted Mass Chiral Perturbation Theory
• Continuum Limit of Overlap Valence Quarks on a Twisted Mass Sea
• Quark mass dependence of two-flavor QCD
• Neutral mesons and disconnected diagrams in Twisted Mass QCD
• An introduction to chiral perturbation theory
• Ward Identity of the Vector Current and the Decay Rate of ${\eta }_c\to \gamma \gamma$ in Lattice QCD
• Quark mass anomalous dimension and ${\Lambda }_{\overline{\text{MS}}}$ from the twisted mass Dirac operator spectrum
• Vacuum Insertion Approximation and the $\Delta I=1/2$ rule:a lattice QCD test of the naïve factorization hypothesis for $K$, $D$, $B$ and static mesons
• Pseudo-scalar meson form factors with maximally twisted Wilson fermions at Nf = 2
• Hard hadron spectroscopy
• Isotropic and Anisotropic Lattice Spacing Corrections for I=2 pi-pi Scattering from Effective Field Theory
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