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nucl-th2025
Contact potentials in presence of a regular finite-range interaction using dimensional regularization and the method
David R. Entem, Juan Nieves, Jose Antonio Oller
We solve the Lippman-Schwinger equation (LSE) with a kernel that includes a regular finite-range potential and additional contact terms with derivatives. We employ distorted wave t…
hep-ph2025
Coupled-channel formalism
José Antonio Oller
This article provides a pedagogical exploration of coupled-channel scattering in hadronic physics, focusing on theoretical methodologies, and practical applications. It covers key…