Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: An exploratory study
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Georg von Hippel
- Thomas D Rae
- Eigo Shintani
- Hartmut Wittig
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000390680700006&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1016/j.nuclphysb.2016.11.003
- eISSN
- 1873-1562
- Externe Identifier
- Clarivate Analytics Document Solution ID: EF9WC
- ISSN
- 0550-3213
- Zeitschrift
- NUCLEAR PHYSICS B
- Paginierung
- 138 - 159
- Datum der Veröffentlichung
- 2017
- Status
- Published
- Titel
- Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: An exploratory study
- Sub types
- Article
- Ausgabe der Zeitschrift
- 914
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- Georg von Hippel
- Thomas D Rae
- Eigo Shintani
- Hartmut Wittig
- DOI
- 10.1016/j.nuclphysb.2016.11.003
- ISSN
- 0550-3213
- Zeitschrift
- Nuclear Physics B
- Sprache
- en
- Paginierung
- 138 - 159
- Datum der Veröffentlichung
- 2017
- Status
- Published
- Herausgeber
- Elsevier BV
- Herausgeber URL
- http://dx.doi.org/10.1016/j.nuclphysb.2016.11.003
- Datum der Datenerfassung
- 2021
- Titel
- Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: An exploratory study
- Ausgabe der Zeitschrift
- 914
Datenquelle: Crossref
- Abstract
- We study the performance of all-mode-averaging (AMA) when used in conjunction with a locally deflated SAP-preconditioned solver, determining how to optimize the local block sizes and number of deflation fields in order to minimize the computational cost for a given level of overall statistical accuracy. We find that AMA enables a reduction of the statistical error on nucleon charges by a factor of around two at the same cost when compared to the standard method. As a demonstration, we compute the axial, scalar and tensor charges of the nucleon in $N_f=2$ lattice QCD with non-perturbatively O(a)-improved Wilson quarks, using O(10,000) measurements to pursue the signal out to source-sink separations of $t_s\sim 1.5$ fm. Our results suggest that the axial charge is suffering from a significant amount (5-10%) of excited-state contamination at source-sink separations of up to $t_s\sim 1.2$ fm, whereas the excited-state contamination in the scalar and tensor charges seems to be small.
- Autoren
- Georg von Hippel
- Thomas D Rae
- Eigo Shintani
- Hartmut Wittig
- Autoren-URL
- http://arxiv.org/abs/1605.00564v3
- Zeitschrift
- Nucl.Phys. B
- Schlüsselwörter
- hep-lat
- hep-lat
- physics.comp-ph
- Notes
- 24 pages, 11 figures (25 pdf files); v3:version to appear in Nucl.Phys.B
- Paginierung
- 138 - 159
- Datum der Veröffentlichung
- 2016
- Herausgeber URL
- http://dx.doi.org/10.1016/j.nuclphysb.2016.11.003
- Datum der Datenerfassung
- 2016
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2016
- Titel
- Nucleon matrix elements from lattice QCD with all-mode-averaging and a domain-decomposed solver: an exploratory study
- Ausgabe der Zeitschrift
- 914
Files
1605.00564v3.pdf
Datenquelle: arXiv
- Beziehungen:
- Eigentum von