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Revista mexicana de física
Print version ISSN 0035-001X
Abstract
GUERRERO, R.; RODRIGUEZ, R.O. and CARRERAS, F.. Massless fermions localization on domain walls. Rev. mex. fis. [online]. 2020, vol.66, n.1, pp.77-81. Epub Nov 27, 2020. ISSN 0035-001X. https://doi.org/10.31349/revmexfis.66.77.
Massless fermions on scalar domain walls are considered. Two walls are established, corresponding to 5-dimensional static spacetime asymptotically Anti de-Sitter, differentiated by the symmetry around the wall, and in each case, massless chiral fermions are coupled with the wall by a Yukawa term. We identify a normalizable state associated to the migration of fermions toward the edge of the wall. This effect is generated by the competition between the Yukawa interaction and the gravitational repulsion on the matter fields, and it is independent of the Z2 symmetry of the wall.
Keywords : Massless fermions; fermion localization; Yukawa coupling; migratory effect; 04.20.-q; 11.27.+d; 04.50.+h.