133 citations · 499 across the 15 of their papers we have counts for
15 papers
Conformal Isometries and Curvature Collineations of an Impulsive Plane Wave: a distributional approach
Juan Calles, Nelson Pantoja
By extending the notion of Lie derivative to distribution-valued tensor fields of order , Lie derivatives with respect to vector fields, , can be shown to…
Selfgravitating Higgs domain walls as a braneworlds
Nelson Pantoja
Five-dimensional domain walls in gauged generate a position-dependent symmetry breaking pattern along the additional dimension. We analize the perturbative stability and th…
Gravitational localization of scalar zero modes in SU(5) X Z2 branes
Nelson Pantoja, Rossana Rojas
The fluctuations of 5D self-gravitating non-abelian kinks which arise from the breaking of the SU(5) X Z2 symmetric theory are analyzed within the context of brane-worlds. While te…
Self-gravitating non-abelian kinks as brane worlds
Alejandra Melfo, Roger Naranjo, Nelson Pantoja +2
We address the properties of self-gravitating domain walls arising from the breaking of an SU(N) x Z_2- symmetric theory. In the particular case of N=5, we find that the two classe…
Breaking the symmetry of the Randall-Sundrum scenario and the fate of the massive modes
Alejandra Melfo, Nelson Pantoja, Freddy Ramírez
We address in detail the issue of possible resonances in the massive modes on a brane without reflection symmetry. After identifying a set of solvability conditions, we show explic…
Gauge field localization on brane worlds
Rommel Guerrero, Alejandra Melfo, Nelson Pantoja +1
We consider the effects of spacetime curvature and brane thickness on the localization of gauge fields on a brane via kinetic terms induced by localized fermions. We find that in a…