Jul 26 – 30, 2021
US/Eastern timezone

Toward a resolution of the NN controversy

Jul 27, 2021, 2:15 PM
Oral presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions


Amy Nicholson (University of North Carolina at Chapel Hill)


Lattice QCD calculations of two-nucleon interactions have been underway for about a decade, but still haven't reached the pion mass regime necessary for matching onto effective field theories and extrapolating to the physical point. Furthermore, results from different methods, including the use of the Luscher formalism with different types of operators, as well as the HALQCD potential method, do not agree even qualitatively at very heavy pion mass. In this talk I will discuss these issues and present steps toward an understanding of the various systematics at play.

Primary authors

Amy Nicholson (University of North Carolina at Chapel Hill) Andre Walker-Loud (Lawrence Berkeley National Laboratory) Colin Morningstar (Carnegie Mellon University) John Merritt Bulava Pavlos Vranas (LLNL) Ben Hoerz Chia Cheng Chang (University of California, Berkeley) Andrew Hanlon (Helmholtz-Institut Mainz, JGU) Evan Berkowitz Enrico Rinaldi (Lawrence Livermore National Laboratory) Dean Howarth (Boston University) Christopher Koerber Wayne Tai Lee Kate Clark (NVIDIA)

Presentation materials