Speaker
Nesreen Hasan
(Bergische Universitaet Wuppertal)
Description
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 from the Budapest-Marseille-Wuppertal collaboration.
For removing the effects of excited-states contamination, the calculations
were done at three source-sink separations and the summation method was
used.
Primary author
Nesreen Hasan
(Bergische Universitaet Wuppertal)
Co-authors
Andrew Pochinsky
(Center for Theoretical Physics, Massachusetts Institute of Technology)
Jeremy Green
(Institut fuer Kernphysik, Johannes Gutenberg-Universitaet Mainz)
John Negele
(Center for Theoretical Physics, Massachusetts Institute of Technology)
Michael Engelhardt
(Department of Physics, New Mexico State University)
Sergey Syritsyn
(RIKEN BNL Research Center, Brookhaven National Laboratory)
Stefan Krieg
(IAS, Juelich Supercomputing Centre, Forschungszentrum Juelich)
Stefan Meinel
(Department of Physics, University of Arizona)
