2018/11/01 by Alessandro Baroni, Baroni, Alessandro, Raúl A. Briceño +5
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.48550/arxiv.1811.00368
7 pages, 2 figures, Proceedings of Lattice 2018
arxiv created 2018/11/01 · openalex publication_date 2018/11/01 · arxiv updated 2018/11/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this talk, we present a framework for studying structural information of resonances and bound states coupling to two-hadron scattering states. This makes use of a recently proposed finite-volume formalism to determine a class of observables that are experimentally inaccessible but can be accessed via lattice QCD. In particular, we shown that finite-volume two-body matrix elements with one current insertion can be directly related to scattering amplitudes coupling to the external current. For two-hadron systems with resonances or bound states, one can extract the corresponding form factors of these from the energy-dependence of the amplitudes.