Forays into the dark side of the swamp - Archive ouverte HAL
Article Dans Une Revue Physical Review D Année : 2019

Forays into the dark side of the swamp

Résumé

Motivated by the swampland conjectures, we study the cosmological signatures of a quintessence potential which induces time variation in the low-energy effective field theory. After deriving the evolution of the quintessence field, we illustrate its possible ramifications by exploring putative imprints in a number of directions of particle phenomenology. We first show that a dark matter self-interaction rate increasing with time gives a novel way of reconciling the large self-interactions required to address small-scale structure issues with the constraint coming from clusters. Next, we study the effects of kinetic mixing variation during the radiation-dominated era on freeze-in dark matter production. Last, we elucidate quintessence effects on the restoration of the electroweak symmetry at finite temperature and the lifetime of the electroweak vacuum through a modification of the effective Higgs mass and quartic coupling.

Dates et versions

hal-02279090 , version 1 (05-09-2019)

Identifiants

Citer

Iason Baldes, Debtosh Chowdhury, Michel H.G. Tytgat. Forays into the dark side of the swamp. Physical Review D, 2019, 100 (9), pp.095009. ⟨10.1103/PhysRevD.100.095009⟩. ⟨hal-02279090⟩
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