Higgs Boson Emerging from the Dark.,Physical Review Letters

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Higgs Boson Emerging from the Dark.
Physical Review Letters ( IF 8.1 ) Pub Date : 2020-07-08 , DOI: 10.1103/physrevlett.125.021801
Chengfeng Cai ₁ , Hong-Hao Zhang ₁ , Giacomo Cacciapaglia ₂ , Martin Rosenlyst ₃ , Mads T Frandsen ₃

Affiliation

We propose a new nonthermal mechanism of dark matter production based on vacuum misalignment. A global

X

-charge asymmetry is generated at high temperatures, under which both the will-be Higgs boson and the dark matter are charged. At lower energies, the vacuum changes alignment and breaks the

U (1)_{X}

, leading to the emergence of the Higgs bosonand of a fraction of charge asymmetry stored in the stable dark matter relic. This mechanism can be present in a wide variety of models based on vacuum misalignment, and we demonstrate it in a composite Higgs template model, where all the necessary ingredients are naturally present. A light pseudo-scalar