Please visit Jefferson Lab Event Policies and Guidance before planning your next event: https://www.jlab.org/conference_planning.

Nov 14 – 16, 2022
Jefferson Lab
US/Eastern timezone

Two-nucleon interactions in the continuum from lattice QCD

Nov 14, 2022, 2:05 PM
35m
Jefferson Lab

Jefferson Lab

Speaker

Andrew Hanlon (Brookhaven National Laboratory)

Description

There remains a decade-old controversy regarding two-nucleon interactions from lattice QCD at higher than physical pion masses. Initially this began as a disagreement between two entirely different methods (i.e. Lüscher’s two-particle quantization condition and the HAL QCD potential method). However, Lüscher’s quantization condition relies on the extraction of finite-volume energies, and recent improved energy determinations have called into question older results using the Lüscher method. In this talk, I will show calculations for two nucleon interactions utilizing the variational approach for extracting finite-volume energies reliably. This work includes six lattice spacings, allowing us to take a continuum limit which is found to be necessary for obtaining correct results.

Primary authors

Andrew Hanlon (Brookhaven National Laboratory) Jeremy Green (DESY Zeuthen) Dr Parikshit Junnarkar Prof. Hartmut Wittig

Presentation materials