Artículo
Fermion helicity flip and fermion oscillation induced by dynamical torsion field
Fecha de publicación:
07/2019
Editorial:
IOP Publishing
Revista:
Europhysics Letters
ISSN:
0295-5075
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We show that in theories of gravitation based in affine geometries the torsion field, that takes a dynamical character, produces the non-conservation of the helicity of fermion particles (spin precession). Such effect is related to the torsion vector hμ (the dual of totally antisymmetric torsion field). The oscillation of fermion fields (e.g., Majorana neutrinos) in the presence of the dynamical torsion field also is computed showing that such oscillation depends on the zero component of hμ. This fact is in a sharp contrast with earlier reference (Capozziello S. et al., Europhys. Lett., 46 (1999) 710) were the torsion is a background (non-dynamical) being its dual a null vector. Cosmological implicancies of this research are discussed in the context of previous results of the authors where group theoretical features of the underlying theory and the relation torsion-dark matter field were considered.
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Articulos(INFINA)
Articulos de INST.DE FISICA DEL PLASMA
Articulos de INST.DE FISICA DEL PLASMA
Citación
Cirilo, Diego Julio; Fermion helicity flip and fermion oscillation induced by dynamical torsion field; IOP Publishing; Europhysics Letters; 127; 1; 7-2019; 1-5
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