The physics of intersecting thick to thin branes

We model four-dimensional junctions made out of intersections of co-dimension one brane living in higher-dimensional spacetimes through domain walls. We take a new look at the problem of localizing fermion states on brane junctions as a result of intersecting one thick brane to others sufficiently thin. All the branes intersect orthogonally to form a four-dimensional junction embedded in a higher -dimensional bulk. We discuss the effects of the Yukawa coupling and the proton decay on the restriction of the parameters that control the junction stability and the brane thickness which also define the bulk cosmological constant.(c) 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.

Automated summary

In this paper, we model four-dimensional junctions by intersecting co-dimension one branes living in higher-dimensional spacetimes through domain walls. We investigate the localization of fermion states on the brane junctions formed by intersecting one thick brane with sufficiently thin ones. The branes intersect orthogonally to form a four-dimensional junction embedded in a higher-dimensional bulk. We analyze the effects of Yukawa coupling and proton decay on the stability of the junctions and the thickness of the branes, which also determine the bulk cosmological constant.