Dark matter in supersymmetric models with axino LSP in Randall-Sundrum II brane model
Jin U Kang, Grigoris Panotopoulos
TL;DR
This paper investigates axino dark matter within the RSII brane model, analyzing how axino mass and five-dimensional Planck mass influence dark matter viability under CMSSM assumptions.
Contribution
It introduces a study of axino dark matter in the RSII brane model with specific assumptions about NLSP decay contributions and derives bounds on axino and Planck masses.
Findings
Axino can serve as dark matter in the universe.
Derived bounds on five-dimensional Planck mass.
Determined axino mass ranges for different model parameters.
Abstract
The axino dark matter hypothesis in RSII brane model is studied. Within the framework of CMSSM we assume that the lightest neutralino or stau is the NLSP, and that the axino production has a single contribution from the NLSP decay. It is found that the axino can play the role of dark matter in the universe and we determine what the axino mass should be for different values of the five-dimensional Planck mass. An upper bound is obtained for the latter
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