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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Improving the Feynman-Hellmann Method

Jul 26, 2018, 11:00 AM
106 (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Structure Hadron Structure


Dr Arjun Gambhir (Lawrence Livermore National Laboratory)


The Feynman-Hellmann method, as implemented by Bouchard et al. [1612.06963], has recently been used successfully to determine the nucleon axial charge. A limitation of the method was the restriction to a single operator and a single momentum during the computation of each "Feynman-Hellmann" propagator. Here we discuss enhancements to the method that relax this constraint and we demonstrate the successful implementation of the improved version with a reproduction of the axial charge on a test ensemble.

Primary author

Dr Arjun Gambhir (Lawrence Livermore National Laboratory)

Presentation Materials