5 papers · 1 filter
Magnetic field modifications to the pion-quark vertex in the Linear Sigma Model with quarks
Alejandro Ayala, Flávia Fialho, Adrián Lara +2
We compute the modification to the quark-neutral pion vertex, induced by a constant and uniform magnetic field, using the Linear Sigma Model with quarks as a low energy effective t…
Asymmetric muon-antimuon emission from decays: a clear magnetometer in relativistic heavy-ion collisions
Alejandro Ayala, Ana Julia Mizher, Javier Rendón
We show that a very clear signal of the presence of a strong magnetic field during the early stage of a high-energy heavy-ion collision is provided by the decay of the into d…
Authentic Majorana versus singlet Dirac neutrino contributions to transitions
Jorge Luis Gutiérrez Santiago, G. Hernández-Tomé, Diego Portillo-Sánchez +1
We revisited the computation of the cross section for the transitions in the presence of new heavy Majorana neutrinos. We focus…
Relaxation time for the alignment between quark spin and angular velocity in a rotating QCD medium
Alejandro Ayala, Santiago Bernal-Langarica, Isabel DomÃnguez Jiménez +4
We compute the relaxation times for massive quarks and anti-quarks to align their spins with the angular velocity in a rigidly rotating medium at finite temperature and baryon dens…
Magnetic field dependence of the neutral pion longitudinal screening mass in the linear sigma model with quarks
Alejandro Ayala, Ricardo L. S. Farias, L. A. Hernández +4
We use the linear sigma model with quarks to study the magnetic-field-induced modifications on the longitudinal screening mass for the neutral pion at one-loop level. The effects o…