Authors:	Ottnad, Konstantin
Title:	Excited states in nucleon structure calculations
Online publication date:	4-Jul-2022
Year of first publication:	2021
Language:	english
Abstract:	Excited state contributions represent a formidable challenge for hadron structure calculations in lattice QCD. For physical systems that exhibit an exponential signal-to-noise problem they often hinder the extraction of ground state matrix elements, introducing a major source of systematic error in lattice calculations of such quantities. The development of methods to treat the contribution of excited states and the current status of related lattice studies are reviewed with focus on nucleon structure calculations that are notoriously affected by excited state contamination.
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-7281
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	The European physical journal : A, Hadrons and nuclei 57
Pages or article number:	50
Publisher:	Springer
Publisher place:	Berlin u.a.
Issue date:	2021
ISSN:	1434-601X
Publisher DOI:	10.1140/epja/s10050-021-00355-5
Appears in collections:	JGU-Publikationen