Abstract
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 [1] 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.
| Original language | English |
|---|---|
| Article number | 075 |
| Journal | Proceedings of Science |
| Volume | 334 |
| State | Published - 2018 |
| Externally published | Yes |
| Event | 36th Annual International Symposium on Lattice Field Theory, LATTICE 2018 - East Lansing, United States Duration: Jul 22 2018 → Jul 28 2018 |
Funding
We thank J. Dudek, R. Edwards, A. Jackura, A. S. Kronfeld, S. R. Sharpe, D. Pefkou, for useful discussions. The work of A.B. has been supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Award No. DE-SC0010300.
| Funders | Funder number |
|---|---|
| Office of Nuclear Physics | DE-SC0010300 |
| U.S. Department of Energy | |
| Office of Science |