Jul 26 – 30, 2021
US/Eastern timezone

Towards a variational calculation of nucleon elastic structure

Jul 26, 2021, 2:45 PM
15m
Oral presentation Hadron Structure Hadron Structure

Speaker

Andre Walker-Loud (Lawrence Berkeley National Laboratory)

Description

We have implemented and are computing nucleon 3pt functions using the stochastic Laplacian Heaviside (sLapH) method. Such a technique enables the use of momentum space creation and annihilation operators providing access to the Breit-Frame as well as full control of the spin of the initial and final operator. It also enables the use of multi-hadron operators, for example the problematic N-pi excited state. We will report on the success (or lack thereof) of using sLapH for such three point function calculations as measured both in terms of the computational cost, the stochastic signal that is achievable as compared to the more standard fixed source-sink separation computations using local creation operators and momentum space sinks.

Primary authors

Andre Walker-Loud (Lawrence Berkeley National Laboratory) Dr Ben Hörz (Lawrence Berkeley National Laboratory) John Bulava (University of Southern Denmark) Amy Nicholson Chia Cheng Chang (University of California, Berkeley) Aaron Meyer (University of California Berkeley) Pavlos Vranas (LLNL) Kate Clark (NVIDIA) Dean Howarth (Boston University) Andrew Hanlon (Brookhaven National Laboratory)

Presentation materials