70 citations
- Universidad Diego PortalesCL27 papers
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5 papers · 2 filters
Magnetic field dependence of the neutral pion mass in the linear sigma model with quarks: The strong field case
Alejandro Ayala, José Luis Hernández, L. A. Hernández +2
We use the linear sigma model with quarks to find the magnetic field-induced modifications to the neutral pion mass at one-loop level. The magnetic field effects are introduced by…
Gluon polarization tensor and dispersion relation in a weakly magnetized medium
Alejandro Ayala, Jorge David Castaño-Yepes, L. A. Hernández +2
We study the polarization and dispersion properties of gluons moving within a weakly magnetized background at one-loop order. To this end, we show two alternative derivations of th…
Magnetic corrections to the boson self-coupling and boson-fermion coupling in the linear sigma model with quarks
Alejandro Ayala, José Luis Hernández, L. A. Hernández +2
We compute the magnetic field-induced modifications to the boson self-coupling and the boson-fermion coupling, in the static limit, using an effective model of QCD, the linear sigm…
Magnetic field dependence of nucleon parameters from QCD sum rules
C. A. Dominguez, Luis A. Hernández, Marcelo Loewe +2
Finite energy QCD sum rules involving nucleon current correlators are used to determine several QCD and hadronic parameters in the presence of an external, uniform, large magnetic…
Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram
Alejandro Ayala, Saul Hernandez-Ortiz, Luis A. Hernandez +2
We use the linear sigma model with quarks to locate the critical end point in the effective QCD phase diagram accounting for fluctuations in temperature and quark chemical potentia…