6 citations · 23 across the 22 of their papers we have counts for
22 papers
Exploring tetraquark candidates in a coupled-channels formalism
Pablo G. Ortega, David R. Entem, Francisco Fernández
This study investigates the properties of the tetraquark candidates within a coupled-channels calculation of the system, specifically focusing on the $J…
On a recent calculation of the mass spectra of quarkonia using the Cornell potential with spin-spin interactions
Francisco M. Fernández
We analyse a recent application of the Cornell potential with spin-spin interaction to the mass spectra of quarkonia and show that the authors have in fact used the Kratzer-Fues po…
On some one-dimensional quantum-mechanical models with a delta-potential interaction
Francisco M. Fernández
We discuss a systematic construction of dimensionless quantum-mechanical equations. The process reduces the number of independent model parameters to a minimum and, at the same tim…
On the effective secular equation
Francisco M. Fernández
We show that the effective secular equation proposed several years ago is suitable for estimating the location of the exceptional points of eigenvalue equations. As an illustrative…
Production of single-charmed baryons in a quark model approach
Daniel Iglesias-Ferrero, David R. Entem, Francisco Fernández +1
The production of single-charmed baryons , +h.c. and in collisions is studied in the framework of a constituent quark model which…
Algebraic analysis of non-Hermitian quadratic Hamiltonians
Francisco M. Fernández
We study a general one-mode non-Hermitian quadratic Hamiltonian that does not exhibit -symmetry. By means of an algebraic method we determine the conditions for the e…