arxiv: 1111.0255 · v2 · pith:YSKZVDEZnew · submitted 2011-11-01 · ✦ hep-lat

Excited state contamination in nucleon structure calculations

Jeremy Green , Stefan Krieg , John Negele , Andrew Pochinsky , Sergey Syritsyn This is my paper

classification ✦ hep-lat

keywords excitedcalculationscontaminationerrornucleonsource-sinkstatesstructure

0 comments p. Extension

Add this Pith Number to your LaTeX paper

\usepackage{pith}
\pithnumber{YSKZVDEZ}

Prints a linked pith:YSKZVDEZ badge after your title and writes the identifier into PDF metadata. Compiles on arXiv with no extra files. Learn more

read the original abstract

Among the sources of systematic error in nucleon structure calculations is contamination from unwanted excited states. In order to measure this systematic error, we vary the operator insertion time and source-sink separation independently. We compute observables for three source-sink separations between 0.93 fm and 1.39 fm using clover-improved Wilson fermions and pion masses as low as 150 MeV. We explore the use of a two-state model fit to subtract off the contribution from excited states.

This paper has not been read by Pith yet.

Excited state contamination in nucleon structure calculations

discussion (0)