Muon g-2 with overlap valence fermions

G Wang, T Draper, KF Liu, YB Yang - Physical Review D, 2023 - APS
We present a lattice calculation of the leading order hadronic vacuum polarization
contribution to the muon anomalous magnetic moment for the connected light and strange …

Finite-volume energy spectrum of the system

A Alexandru, R Brett, C Culver, M Döring, D Guo… - Physical Review D, 2020 - APS
The dynamics of multikaon systems are of relevance for several areas of nuclear physics.
However, even the simplest systems, two and three kaons, are hard to prepare and study …

Three-body interactions from the finite-volume QCD spectrum

R Brett, C Culver, M Mai, A Alexandru, M Döring… - Physical Review D, 2021 - APS
We perform a fit of the finite-volume QCD spectrum of three pions at maximal isospin to
constrain the three-body force. We use the unitarity-based relativistic three-particle …

Three-Body Dynamics of the Resonance from Lattice QCD

M Mai, A Alexandru, R Brett, C Culver, M Döring… - Physical Review Letters, 2021 - APS
Resonant hadronic systems often exhibit a complicated decay pattern in which three-body
dynamics play a relevant or even dominant role. In this work we focus on the a 1 (1260) …

Resonance parameters of the rho-meson from asymmetrical lattices

C Pelissier, A Alexandru - Physical Review D—Particles, Fields, Gravitation …, 2013 - APS
We present a lattice QCD calculation of the parameters of the ρ meson decay. The study is
carried out on spatially asymmetric boxes using nHYP-smeared clover fermions with two …

Scaling lattice QCD beyond 100 GPUs

R Babich, MA Clark, B Joó, G Shi, RC Brower… - Proceedings of 2011 …, 2011 - dl.acm.org
Over the past five years, graphics processing units (GPUs) have had a transformational
effect on numerical lattice quantum chromodynamics (LQCD) calculations in nuclear and …

Rho resonance parameters from lattice QCD

D Guo, A Alexandru, R Molina, M Döring - Physical Review D, 2016 - APS
We perform a high-precision calculation of the phase shifts for π-π scattering in the I= 1, J= 1
channel in the elastic region using elongated lattices with two mass-degenerate quark …

Extraction of isoscalar phase shifts from lattice QCD

D Guo, A Alexandru, R Molina, M Mai, M Döring - Physical Review D, 2018 - APS
We conduct a two-flavor (N f= 2) lattice QCD calculation of the elastic phase shifts for pion-
pion scattering in the scalar, isoscalar channel (the σ-meson). The calculation is performed …

[PDF][PDF] Keeneland: Bringing heterogeneous GPU computing to the computational science community

JS Vetter, R Glassbrook, J Dongarra, K Schwan… - Computing in Science …, 2011 - netlib.org
The Keeneland project—named for a historic thoroughbred horse racing track in Lexington,
Kentucky—is a five-year Track 2D grant awarded by the US National Science Foundation …

Unusual features of QCD low-energy modes in the infrared phase

A Alexandru, I Horváth - Physical Review Letters, 2021 - APS
It was recently proposed that there is a phase in thermal QCD (IR phase) at temperatures
well above the chiral crossover, featuring elements of scale invariance in the infrared (IR) …