Resonances in an external field: the 1+1 dimensional case
D. Hoja (Univ. Bonn), U.-G. Mei{\ss}ner (Univ. Bonn, FZ. Juelich),, A. Rusetsky (Univ. Bonn)
TL;DR
This paper extends Luescher's method within non-relativistic effective field theory in 1+1 dimensions to analyze resonances under external fields, aiding the interpretation of lattice simulation results for form factors.
Contribution
It generalizes Luescher's approach to include external fields in 1+1 dimensions, enabling better analysis of resonance form factors from lattice data.
Findings
Framework for studying resonance form factors in external fields
Extension of Luescher's method to 1+1 dimensions with external fields
Facilitates lattice simulation analysis of resonance properties
Abstract
Using non-relativistic effective field theory in 1+1 dimensions, we generalize Luescher's approach for resonances in the presence of an external field. This generalized approach provides a framework to study the infinite-volume limit of the form factor of a resonance determined in lattice simulations.
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