Conveners
Parallel Session: [P2-C]
- Hye-Sung Lee (KAIST)
We point out that two models that reconcile the neutron lifetime anomaly via dark decays of the neutron, also predict dark matter-neutron ($\bar{\chi}-n$) annihilation that may be observable in neutron-antineutron oscillation and proton decay searches at Super-Kamiokande, Hyper-Kamiokande and DUNE. We study signatures of $\bar{\chi}n\to \gamma\pi^0$~(or multi-pions) and $\bar{\chi}n\to...
The dark matter (DM) direct detection experiments give a strong upper bound on the DM-nucleon scattering cross section. In fermionic DM models with pseudoscalar mediators, the tree-level amplitude for the DM-nucleon elastic scattering is suppressed by the momentum transfer in the non-relativistic limit. This is a nice feature to avoid the constraint from the direct detection experiments....
I will introduce the concept of boosted dark matter, focussed on inelastic boosted dark matter (iBDM) model, as a promising alternative of the conventional WIMP models. In such a class of model, a light DM which is boosted enough to pass the energy threshold can come from dense dark matter region in the universe, such as the galactic center, the sun, dwarf spheroidal galaxies, showing unique...
Feebly interacting massive particles (FIMPs), contrasting with weakly interacting massive particles (WIMPs), is an intriguing dark matter candidate. Light (keV-scale) FIMPs produced by the freeze-in mechanism is of particular interest in that the structure formation of the Universe with FIMPs differs from that with WIMPs on galactic scales. The galactic-scale structure formation has been...
I will talk about the calculation of probable light dark matter emission rate from a neutron star with paired nuclear medium. The constraining power of the resultant bound is similar to the SN1987A limit. However, these bounds depend on different processes in distinct environment and are thus complement to each other. This talk will be base on my on going work and a previous paper arXiv:1806.07151.
