Higgsino dark matter in a non-standard history of the universe

Higgsino dark matter in a non-standard history of the universe

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A light replica beach walk candle higgsino is strongly favored by the naturalness, while as a dark matter candidate it is usually under-abundant.We consider the higgsino production in a non-standard history of the universe, caused by a scalar field with an initially displaced vacuum.We find that given a proper reheating temperature induced by the scalar decay, a light higgsino could provide the correct dark matter relic abundance.

On the other hand, a hellfire sloe gin sub-TeV higgsino dark matter, once observed, would be a strong hint of the non-standard thermal history of the universe.