3,138 research outputs found
Detecting interactions between dark matter and photons at high energy colliders
We investigate the sensitivity to the effective operators describing
interactions between dark matter particles and photons at future high energy
colliders via the \gamma+ \slashed{E} channel. Such operators could
be useful to interpret the potential gamma-ray line signature observed by the
Fermi-LAT. We find that these operators can be further tested at
colliders by using either unpolarized or polarized beams. We also derive a
general unitarity condition for processes and apply it to the dark
matter production process .Comment: 13 pages, 8 figure
Primordial black holes from an inflationary potential valley
Primordial black holes (PBHs) could be formed if large perturbations are
generated on small scales in inflation. We study a toy inflation model with a
local minimum. The curvature perturbations are enhanced when the inflaton
passes through the local minimum, with more efficient amplification rate than
that of quasi-inflection point inflation, leading to the production of PBHs on
small scales. The PBHs could comprise the total dark matter in the mass window
--g.Comment: 7 pages,4 figure
Discussion on the Relevance of Old Low-lying Land Reclamation and Soil Liquefaction
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive
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