Abstract We examine the singlet-doublet fermionic dark matter model. where the non-thermal production of the dark matter in light of a non-standard cosmology demands a significantly large interaction rate than the typical radiation-dominated Universe. Despite being a model of freeze-in light dark matter and heavy mediator. the characteristic long-lived particle searches at the collide... https://chefesquipmenters.shop/product-category/disposable-lids/