The paper projects that ATLAS with lead-lead ultra-peripheral collisions could exclude or discover light charged vector bosons decaying to heavy neutral leptons in the 5 to 105 GeV mass range.
Planck-scale effects on WIMP dark matter
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abstract
There exists a widely known conjecture that gravitational effects violate global symmetries. We study the effect of global-symmetry violating higher-dimension operators induced by Planck-scale physics on the properties of WIMP dark matter. Using an effective description, we show that the lifetime of the WIMP dark matter candidate can satisfy cosmological bounds under reasonable assumptions regarding the strength of the dimension-five operators. On the other hand, the indirect WIMP dark matter detection signal is significantly enhanced due to new decay channels.
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Probing the existence of a new charged vector boson decaying into heavy neutral leptons using ultra-peripheral heavy ion collisions at ATLAS
The paper projects that ATLAS with lead-lead ultra-peripheral collisions could exclude or discover light charged vector bosons decaying to heavy neutral leptons in the 5 to 105 GeV mass range.