Particle-dimer approach for the Roper resonance in a finite volume

Abstract We propose a new finite-volume approach which implements two- and three-body dynamics in a transparent way based on an Effective Field Theory Lagrangian. The formalism utilizes a particle-dimer picture and formulates the quantization conditions based on the self-energy of the decaying parti...

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Bibliographic Details
Main Authors: Daniel Severt, Maxim Mai, Ulf-G. Meißner
Format: Article
Language:English
Published: SpringerOpen 2023-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP04(2023)100