136 citations · 1.1k across the 50 of their papers we have counts for
55 papers
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…
Study of the and dibaryons in constituent quark model
Pablo Martín-Higueras, David R. Entem, Pablo G. Ortega +2
Dibaryons are the simplest system in which the baryon-baryon interaction, and hence the underlying quark-quark interaction, can be studied in a clear way. Although the only dibaryo…
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…
Strong Interaction Physics at the Luminosity Frontier with 22 GeV Electrons at Jefferson Lab
A. Accardi, P. Achenbach, D. Adhikari +441
This document presents the initial scientific case for upgrading the Continuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (JLab) to 22 GeV. It is the result of a…
Unraveling the nature of the novel and tetraquark candidates
P. G. Ortega, D. R. Entem, F. Fernandez +1
Using proton-proton collisions at centre-of-mass energies , , and TeV, with a total integrated luminosity of , the LHCb collaboration has performed am…
Nature of the doubly-charmed tetraquark in a constituent quark model
Pablo G. Ortega, Jorge Segovia, David R. Entem +1
The recently discovered is evaluated as a molecular structure in the sector. A coupled-channels calculation in charged basis, considering the $D^0D^{*\,…
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…
Strange hidden-charm and pentaquarks and additional , and candidates in a quark model approach
Pablo G. Ortega, David R. Entem, Francisco Fernandez
Hidden-charm pentaquark-like and resonances are studied in a constituent quark model as molecular meson-baryon structures. Such states are found…
Kaon spectrum revisited
U. Taboada-Nieto, P. G. Ortega, D. R. Entem +2
The European Organization for Nuclear Research (CERN) has recently approved a world-unique QCD facility in which an updated version of the external M2 beam line of the CERN SPS in…
Towards the discovery of novel states: radiative and hadronic transitions
B. Martín-González, P. G. Ortega, D. R. Entem +2
The properties of the -meson family () are still not well determined experimentally because the specific mechanisms of formation and decay remain poorly understood. U…
The structure in a coupled-channels model
Pablo G. Ortega, David R. Entem, Francisco Fernandez
The discovery of the and structures in the heavy quarkonium spectrum showed the need to incorporate hadron structures beyond the naive and $q…
Does the counterpart of the exist?
Pablo G. Ortega, David R. Entem, Francisco Fernandez
We explore the possible existence of the counterpart of the state in a coupled-channels calculation within a constituent quark model, with the aim of conf…
The as the dressed meson in a coupled-channels calculation
Pablo G. Ortega, Jorge Segovia, David R. Entem +1
The recent discovery of the meson by the LHCb Collaboration has stimulated the analysis of meson-meson channels effects in the two-body quark-antiquark meson spect…
Symmetries, partners and thresholds: the case of the
Pablo G. Ortega, David R. Entem, Francisco Fernandez
The discovery of the meant the revival of the heavy meson spectroscopy beyond naive structures. Once that the scheme, which was very useful in the dawn…
The structures in a constituent quark model coupled-channels calculation
Pablo G. Ortega, Jorge Segovia, Francisco Fernandez
The and are two bottomonium-like structures discovered in the , and invariant mass spectra, where…
The strange partner of the structures in a coupled-channels model
Pablo G. Ortega, David R. Entem, F. Fernandez
The discovery of a new charged structure in the recoil-mass spectrum near the threshold, dubbed , reinforce the idea that the struc…
Coupling hadron-hadron thresholds within a chiral quark model approach
Pablo G. Ortega, David R. Entem
Heavy hadron spectroscopy was well understood within the naive quark model until the end of the past century. However, in 2003, the was discovered, with puzzling properti…
On the precise measurement of the mass and its counting rate
Pablo G. Ortega, Enrique Ruiz Arriola
The lineshapes of specific production experiments of the exotic state such as with quantum numbers involving triangle singularities have been found to bec…
The X(3872) as a mass distribution
E. Ruiz Arriola, P. Garcia Ortega
All existing experimental evidence of the bound state nature of the X(3872) relies on considering its decay products with a finite experimental spectral mass resolution which is ty…
Isotope production in thunderstorms
Pablo G. Ortega
Thunderstorms and lightnings are natural particle accelerator systems. Terrestrial gamma-ray flashes, caused by relativistic runaway electron avalanches, produce bursts of and…
Spectroscopy of mesons and the possibility of finding exotic -like structures
Pablo G. Ortega, Jorge Segovia, David R. Entem +1
The bottom-charmed () mesons are more stable than their charmonium () and bottomium () partners because they cannot annihilate into gluons. However, the low…
The charged and structures in a constituent quark model approach
Pablo G. Ortega, Jorge Segovia, David R. Entem +1
The nature of the recently discovered and structures is intriguing. Their charge forces its minimal quark content to be (where and $q=\{u,…
Is the X(3872) a bound state ?
Pablo G. Ortega, Enrique Ruiz Arriola
All existing experimental evidence of the bound state nature of the relies on considering its decay products with a finite experimental spectral mass resolution which is…
Triply-heavy baryons in a constituent quark model
Gang Yang, Jialun Ping, Pablo G. Ortega +1
A constituent quark model, which has recently been successfully applied to the study of heavy quarkonium properties such as its spectrum but also a diverse array of observables rel…