No-go theorem for gravivector and graviscalar on the brane

Details No-go theorem for gravivector and graviscalar on the brane No-go theorem for gravivector and graviscalar on the brane

2000-10-24

arxiv.org/abs/hep-th/0010208v2

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, comments and references added

Scientific paper

We prove the no-go theorem that the gravivector $(h_{5\mu})$ and graviscalar $(h_{55})$ cannot have any on-shell propagation on the Randall-Sundrum (RS) brane. For this purpose, we analyze all of their linearized equations with the de Donder gauge (5D transverse-tracefree gauge). But we do not introduce any matter source. We use the Z$_2$-symmetry argument and their ($h_{5\mu}, h_{55}$) compatibility conditions with the tensor $h_{\mn}$-equation. It turns out that $h_{55}$ does not have any bulk (massive) and brane (massless) propagations. Although $h_{5\mu}$ has a sort of massive propagations, they do not belong to the physical solution. Hence we confirm that the Randall-Sundrum gauge suffices the on-shell brane physics.

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