Nucleon strangeness form factors and moments of PDF

Takumi Doi, Mridupawan Deka, Shao Jing Dong, Terrence Draper, Keh Fei Liu, Devdatta Mankame, Nilmani Mathur, Thomas Streuer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The calculation of the nucleon strangeness form factors from N f=2+1 clover fermion lattice QCD is presented. Disconnected insertions are evaluated using the Z(4) stochastic method, along with unbiased subtractions from the hopping parameter expansion. We find that increasing the number of nucleon sources for each configuration improves the signal significantly. We obtain GMs(0)=-0.017(25)(07), which is consistent with experimental values, and has an order of magnitude smaller error. Preliminary results for the strangeness contribution to the second moment of the parton distribution function are also presented.

Original languageEnglish
Title of host publication12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2010
Pages598-601
Number of pages4
DOIs
StatePublished - 2011
Event12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2010 - Williamsburg, VA, United States
Duration: May 31 2010Jun 4 2010

Publication series

NameAIP Conference Proceedings
Volume1374
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference12th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, MENU 2010
Country/TerritoryUnited States
CityWilliamsburg, VA
Period5/31/106/4/10

ASJC Scopus subject areas

  • General Physics and Astronomy

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