A practical guide to fitting correlation functions from lattice data

Fuente: arXiv
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Main Author: Parrott, W. G.
Format: Preprint
Published: 2024
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author Parrott, W. G.
author_facet Parrott, W. G.
contents This guide contains a collection of the tips, tricks, and techniques that we have found to be useful when performing very large, correlated Bayesian fits of two, and three-point correlation functions for semileptonic decays, in this case $B\to K$ and $D\to K$. It is written explicitly with the use of gvar, lsqfit and corrfitter in mind, but many techniques are transferable to other fitting software, and other correlator fits. The guide is by no means comprehensive, and many problems can be approached from different angles and points of view. The intention here is simply to present ideas which may be useful to others.
format Preprint
id arxiv_https___arxiv_org_abs_2410_00802
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A practical guide to fitting correlation functions from lattice data
Parrott, W. G.
High Energy Physics - Lattice
This guide contains a collection of the tips, tricks, and techniques that we have found to be useful when performing very large, correlated Bayesian fits of two, and three-point correlation functions for semileptonic decays, in this case $B\to K$ and $D\to K$. It is written explicitly with the use of gvar, lsqfit and corrfitter in mind, but many techniques are transferable to other fitting software, and other correlator fits. The guide is by no means comprehensive, and many problems can be approached from different angles and points of view. The intention here is simply to present ideas which may be useful to others.
title A practical guide to fitting correlation functions from lattice data
topic High Energy Physics - Lattice
url https://arxiv.org/abs/2410.00802