2019/11/11 by Christopher Kelly, Kelly, Christopher, Tianle Wang +1 · 1 citation
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications
paper · pdf · doi:10.48550/arxiv.1911.04582
openalex publication_date 2019/11/11 · openalex created_date 2022/12/10 · openalex updated_date 2026/07/28
We discuss the status of the RBC & UKQCD collaboration's lattice determination of ε', the measure of direct CP-violation in kaon decays, focusing in particular on recent developments in statistical techniques for estimating standard errors and goodness-of-fit metrics for large amounts of data that have correlations both in the temporal coordinate and also in molecular dynamics time. A key result is the formulation of a technique for determining the null distribution of a fit using a bootstrap method that is free from the usual assumptions of independence, large-n and/or normal data, that can for instance be applied to compute p-values even for uncorrelated fits.