Progress In Lattice QCD Research Articles

Recent progress in applying lattice QCD to kaon physics

Standard lattice calculations in kaon physics are based on the evaluation of matrix elements of local operators between two single-hadron states or a single-hadron state and the vacuum. Recent progress in lattice QCD has gone beyond these standard observables. I will review the status and prospects of lattice kaon physics with an emphasis on non-leptonic K → ππ decay and long-distance processes including K0-K0 mixing and rare kaon decays.

Nuclear Force and Nuclear Physics from Lattice Quantum Chromodynamics

Recent progress in lattice QCD is reviewed with special emphasis on the lattice nuclear force and lattice baryon forces.

QCD AT NONZERO TEMPERATURE: BULK PROPERTIES AND HEAVY QUARKS

We review recent progress in lattice QCD at nonzero temperature with emphasis on the calculations of equation of state and the properties of heavy quark–anti-quark pairs at high temperatures. We also briefly discuss the deconfinement and chiral symmetry restoring aspects of the QCD transition at finite temperature.

Lattice QCD

Some topics from recent progress in lattice QCD are reviewed.

Progress in lattice QCD with dynamical fermions

Recent progress in lattice QCD has been characterised by significant improvements in the algorithms for simulating dynamical fermions, leading to numerical simulations that run now closer to the physical quark masses and with a variety of fermionic discretizations. In this paper we focus on two aspects that have been studied recently. The latest results obtained for the low-energy constants extract from fitting lattice data to chiral perturbation theory. Sources of systematic errors are emphasized, and results from different collaborations are compared by plotting adimensional ratios that should fall on a universal curve as the continuum limit is approached. We also report on recent results for the parameter BK which encodes the nonperturbative contribution to indirect CP violation in kaon mixing.

Progress in the calculation and experimental determination of the strangeness contributions to nucleon form factors

The progress in lattice QCD, especially the capacity to calculate at ever lower quark masses, combined with modern techniques of chiral extrapolation, means that one can now determine the strange quark contribution to the vector form factors of the nucleon with remarkable precision. We review these recent landmark calculations and compare them with the most recent global analysis of the experimental situation using parity violating electron scattering.

LATTICE CALCULATIONS AND HADRON PHYSICS

We review progress in lattice QCD, focusing on efforts to calculate weak matrix elements relevant for the determination of the Cabibbo-Kobayashi-Maskawa matrix. Topics we discuss include light hadron spectrum and quark masses, CP-violation in K meson decays and weak matrix elements of heavy-light mesons.

Results and perspectives in HEP, vis-a-vis lattice QCD

I review in this presentation some aspects of phenomenology in High Energy Physics which are related to recent and possibly future progress in lattice QCD. In particular, I cover (i) the extraction of CKM matrix elements from B physics, (ii) the determination of ϵ′ ϵ , as well as (iii) some issues emerged in the physics of high energy jets produced in hadronic collisions, where input from non-perturbative calculations would benefit our capability to perform better theoretical predictions.

Finite temperature QCD on the lattice

Recent progress in lattice QCD at finite temperature is reviewed.