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Making the Most of the Relic Density for Dark Matter Searches at the LHC 14 TeV Run | | Giorgio Busoni
; Andrea De Simone
; Thomas Jacques
; Enrico Morgante
; Antonio Riotto
; | | Date: |
27 Oct 2014 | | Abstract: | As the LHC continues to search for new weakly interacting particles, it is
important to remember that the search is strongly motivated by the existence of
dark matter. In view of a possible positive signal, it is essential to ask
whether the newly discovered weakly interacting particle can be be assigned the
label "dark matter". Within a given set of simplified models and modest working
assumptions, we reinterpret the relic abundance bound as a relic abundance
range, and compare the parameter space yielding the correct relic abundance
with projections of the Run II exclusion regions. Assuming that dark matter is
within the reach of the LHC, we also make the comparison with the potential
5$sigma$ discovery regions. Reversing the logic, relic density calculations
can be used to optimize dark matter searches by motivating choices of
parameters where the LHC can probe most deeply into the dark matter parameter
space. In the event that DM is seen outside of the region giving the correct
relic abundance, we will learn that either thermal relic DM is ruled out in
that model, or the DM-quark coupling is suppressed relative to the DM coupling
strength to other SM particles. | | Source: | arXiv, 1410.7409 | | Services: | Forum | Review | PDF | Favorites | |
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