Born-Infeld generalization: Axion and Kalb-Ramond from dynamical torsion fields

CIRILO-LOMBARDO, DIEGO JULIO

EUROPHYSICS LETTERS

EPL ASSOCIATION

Año: 2021

0295-5075

We show that in theories of gravitation based on affine geometries the torsion field,that takes a dynamical character, not only the chiral magnetic effect (CME) intervenes in the washup of the chiral anomaly but also the chiral vortical effect (CVE) and the coupled chiral effect(CCE) coming from the hypermagnetic field interaction with the primordial plasma are crucial ina realistic physical scenario, as in the case of the early universe. We also show that the equationgoverning the wash up takes the form given in this paper, supplemented with the dynamicalequation for the torsion vector hμ containing the helicities and other axial couplings. The roleplayed by the neutrinos in the interaction with the axion field in this theoretical framework isbriefly discussed.