Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/105702
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Nucleon matrix elements using the variational method in lattice QCD |
Author: | Dragos, J. Horsley, R. Kamleh, W. Leinweber, D. Nakamura, Y. Rakow, P. Schierholz, G. Young, R. Zanotti, J. |
Citation: | Physical Review D, 2016; 94(7):074505-1-074505-16 |
Publisher: | American Physical Society |
Issue Date: | 2016 |
ISSN: | 2470-0010 2470-0029 |
Statement of Responsibility: | J. Dragos, R. Horsley, W. Kamleh, D. B. Leinweber, Y. Nakamura, P. E. L. Rakow, G. Schierholz, R. D. Young, and J. M. Zanotti |
Abstract: | The extraction of hadron matrix elements in lattice QCD using the standard two- and three-point correlator functions demands careful attention to systematic uncertainties. One of the most commonly studied sources of systematic error is contamination from excited states. We apply the variational method to calculate the axial vector current gA, the scalar current gS, the scalar current gT and the quark momentum fraction ⟨x⟩ of the nucleon and we compare the results to the more commonly used summation and two-exponential fit methods. The results demonstrate that the variational approach offers a more efficient and robust method for the determination of nucleon matrix elements. |
Description: | Published 25 October 2016 |
Rights: | © 2016 American Physical Society |
DOI: | 10.1103/PhysRevD.94.074505 |
Grant ID: | http://purl.org/au-research/grants/arc/FT120100821 http://purl.org/au-research/grants/arc/FT100100005 http://purl.org/au-research/grants/arc/DP150103164 http://purl.org/au-research/grants/arc/DP140103067 http://purl.org/au-research/grants/arc/CE1101004 |
Published version: | http://dx.doi.org/10.1103/physrevd.94.074505 |
Appears in Collections: | Aurora harvest 8 Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.