Journal Article/Contribution to a conference proceedings

FZJ-2016-06011

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Computing the nucleon Dirac radius directly at $Q^2=0$

Hasan, N.FZJ* ; Engelhardt, M. ; Green, J. ; Krieg, S.FZJ* ; Meinel, S. ; Negele, J. ; Pochinsky, A. ; Syritsyn, S.

2016
SISSA Trieste

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Please use a persistent id in citations: http://hdl.handle.net/2128/12794

Abstract: We describe a lattice approach for directly computing momentum derivatives of nucleon matrix elements using the Rome method, which we apply to obtain the isovector magnetic moment and Dirac radius. We present preliminary results calculated at the physical pion mass using a 2HEX-smeared Wilson-clover action. For removing the effects of excited-state contamination, the calculations were done at three source-sink separations and the summation method was used.

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Contributing Institute(s):

1. Jülich Supercomputing Center (JSC)

Research Program(s):

1. 511 - Computational Science and Mathematical Methods (POF3-511) (POF3-511)

Appears in the scientific report 2016

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