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The effect of curvature-scalar mixing on the annihilation cross sections of the dark matter scalar and unparticle dark matter
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Date
2011-12-01
Author
Iltan, E. O.
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We consider the dark matter scalar in the Randall-Sundrum background and study the annihilation cross section if 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 considerable enhancement of the annihilation cross section. Furthermore, we take the unparticle, having a nonzero mass coming from the standard model Higgs-unparticle interaction at low energy levels, as a dark matter candidate and analyze the annihilation cross section by including the effect of 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.
Subject Keywords
Probe wmap observations
,
Phantoms
,
Particle
,
Scenario
,
Dimension
,
Candidate
,
Hierarchy
,
Phenomenology
,
Model
,
Higgs
URI
https://hdl.handle.net/11511/63997
Journal
CANADIAN JOURNAL OF PHYSICS
DOI
https://doi.org/10.1139/p11-104
Collections
Natural Sciences and Mathematics, Article
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Iltan, E. O. (Springer Science and Business Media LLC, 2006-11-01)
We study the branching ratios of the lepton flavor violating processes mu -> e gamma, T -> e gamma and T -> mu gamma by considering that the new Higgs scalars localize with Gaussian pro. le in the extra dimension. We see that the BRs of the LFV decays mu -> e gamma, T -> e gamma and T -> mu gamma are at the order of magnitude of 10(-12), 10(-16) and 10(-12) in the considered range of the free parameters. These numerical values are slightly suppressed in the case that the localization points of new Higgs sca...
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Iltan, EO (2005-10-01)
We study the decay widths of the processes H+ -> W+ H-0 (h(0), A(0)), including the Lorentz violating effects and analyze the possible CPT violating asymmetry arising from CPT odd coefficients. We observe that these effects are too small to be detected, since the corresponding coefficients are highly suppressed at the low energy scale.
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E. O. Iltan, “The effect of curvature-scalar mixing on the annihilation cross sections of the dark matter scalar and unparticle dark matter,”
CANADIAN JOURNAL OF PHYSICS
, pp. 1195–1202, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63997.