6 papers
Bootstrapping Two-Nucleon Effective Field Theories
Q. N. Micha-Mba, M. S. Sánchez, P. G. Ortega +2
Chiral EFT yields singular potentials that require regularization and renormalization when implemented in a dynamical equation such as the Lippmann--Schwinger equation. We employ t…
Exploring tetraquark candidates in a coupled-channels formalism
P. G. Ortega, D. R. Entem, F. Fernandez +1
We investigate the spectrum of tetraquark candidates within a coupled-channels framework. The analysis includes all combinations of , , $η_b(1S…
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…
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…
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…
Revisiting the proton-antiproton scattering using a constituent-quark-model based coupled-channels calculation
P. G. Ortega, D. R. Entem, F. Fernandez +1
Motivated by the last experimental and theoretical advances in the analysis of possible baryonium resonances, the and their partners, we perform a constituent-quark-model…