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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
Constituent-quark-model based coupled-channels calculation of the and tetraquark systems
Pablo G. Ortega, David R. Entem, Francisco Fernández +1
We perform a coupled-channels study of the and tetraquark systems in a molecular approach using a constituent quark model which has been widely us…
hep-ph2025
The Constituent Quark Model
D. R. Entem, F. Fernández, P. G. Ortega +1
In this chapter we give a pedagogical introduction to the constituent quark model. The explanation of magnetic moments of the nucleons was crucial to introduce an effective quark m…