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تسجيل مستخدم جديدProjecting Cosmological Problems on the Story of Gravitinos
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In this paper, we discuss interesting potential implications for the supersymmetric (SUSY) universe in light of cosmological problems on (1) the number of the satellite galaxies of the Milky Way (missing satellite problem) and (2) a value of the matter density fluctuation at the scale around 8$h^{-1}$Mpc ($S_{8}$ tension). The implications are extracted by assuming that the gravitino of a particular mass can be of help to alleviate the cosmological tension. We consider two gravitino mass regimes vastly separated, that is, $m_{3/2}simeq100{rm eV}$ and $m_{3/2}simeq100{rm GeV}$. We discuss non-trivial features of each supersymmetric universe associated with a specific gravitino mass by projecting potential resolutions of the cosmological problems on each of associated SUSY models.
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