Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-03-16
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 12 figures
Scientific paper
We consider the dark matter scalar in the Randall Sundrum background and study the annihilation cross section if the curvature-scalar mixing is switched on. In this case, in addition to the radion, the standard model Higgs scalar drives the annihilation and it leads to a considerable enhancement in the annihilation cross section. Furthermore we take unparticle, having a non-zero mass coming from the standard model Higgs-unparticle interaction in the low energy level, as a dark matter candidate and analyze the annihilation cross section by including the effect of the curvature-scalar mixing. We see that, for both choices, the mixing process plays an essential role in obtaining the dark matter annihilation cross section in the current range.
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