9 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 , , , a…
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…
Can one-loop corrections to the one-gluon exchange potential adequately describe the charmed meson spectrum?
A. Capelo-Astudillo, T. Aguilar, M. Conde-Correa +3
We investigate the charmed meson spectrum using a constituent quark model (CQM) with one-loop corrections applied to the one-gluon exchange (OGE) potential. The study aims to under…
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…
A chiral quark model analysis of the interaction
M. Conde-Correa, T. Aguilar, A. Capelo-Astudillo +3
In this work we analyze the interaction in the framework of a constituent quark model. The near-threshold elastic and charge exchange cross sections are evaluated, findin…
Exploring doubly-heavy tetraquarks in constituent-quark-model based meson-meson coupled-channels approach
P. G. Ortega, D. R. Entem, F. Fernandez +1
The LHCb Collaboration announced in 2021 the discovery of a new tetraquark-like state, named , with minimum quark content , close to the thres…
Detailed derivation of the strong decay model applied to baryons
T. Aguilar, A. Capelo-Astudillo, M. Conde-Correa +3
We provide an in-detail derivation through the pair creation model of the transition matrix for a baryon decaying into a meson-baryon system. The meson's analysis was condu…
An assessment of -states above -threshold using a constituent-quark-model based meson-meson coupled-channels framework
P. G. Ortega, D. R. Entem, F. Fernández +1
The state has been recently observed by the Belle and Belle~II collaborations with enough global significance to motivate an assessment of the high-energy spectrum usual…