2+1 flavour Domain Wall Fermion simulations by the RBC and UKQCD collaborations

Abstract

We review simulations of dynamical domain wall fermions at a fixed inverse lattice spacing of 1.73GeV and with pion masses as light as 330MeV and spatial dimensions as large as 2.7fm performed by the RBC and UKQCD collaborations. These results include pseudoscalar masses and decay constants and low energy constants of the chiral effective lagrangian. We also review results for the neutral kaon mixing amplitude $B_K$, the Kl3 form factor, pseudoscalar meson structure, and vector meson decay constants. In the baryon sector we review results for the spectrum, and nucleon form factors and structure functions. Highlights of our programme include preliminary quark masses, and determinations of $V_{us}$ from both $f_K/f_{\pi }$ and from Kl3, and an updated result for $B_K$. We find significant finite volume effects in the nucleon axial charge $g_A$ for our $m_{\pi }=330$ MeV ensemble on a $(2.7\mathrm{fm}{)}^3$ lattice, and highlight the importance of large physical volumes for non-trivial nucleon physics.

22 pages, PoS(Lat2007) 005

References in corpus (15)

• Accelerating Dynamical Fermion Computations using the Rational Hybrid Monte Carlo (RHMC) Algorithm with Multiple Pseudofermion Fields
• Axial coupling constant of the nucleon for two flavours of dynamical quarks in finite and infinite volume
• Kl3 semileptonic form factor from 2+1 flavour lattice QCD
• Neutral kaon mixing from 2+1 flavor Domain Wall QCD
• Gap Domain Wall Fermions
• Localization and chiral symmetry in 2+1 flavor domain wall QCD
• A Lattice Computation of the First Moment of the Kaon's Distribution Amplitude
• Lattice Results for Vector Meson Couplings and Parton Distribution Amplitudes
• K_l3 form factor with N_f=2+1 dynamical domain wall fermions: A progress report
• Insights and puzzles in light quark physics
• Hard hadron spectroscopy
• The Tunneling Hybrid Monte-Carlo algorithm
• Nucleon Structure and Hyperon Form factor from Lattice QCD
• V_us from kaon decays
• The First Moment of the Kaon Distribution Amplitude from N_f=2+1 Domain Wall Fermions

Cited by in corpus (3)

• Two-flavor QCD simulation with exact chiral symmetry
• Hard hadron spectroscopy
• Progress in kaon physics on the lattice