We propose a novel primordial black hole (PBH) formation mechanism based on a first-
order phase transition (FOPT). If a fermion species gains a huge mass in the true vacuum …

“Dark quark nuggets,” a lump of dark quark matter, can be produced in the early universe for
a wide range of confining gauge theories and serve as a macroscopic dark matter …

The hot big bang is often considered as the origin of all matter and radiation in the Universe.
Primordial nucleosynthesis provides strong evidence that the early Universe contained a hot …

We propose a novel dark matter (DM) scenario based on a first-order phase transition in the
early Universe. If dark fermions acquire a huge mass gap between true and false vacua …

The PAMELA cosmic-ray detector was launched on June 15th 2006 on board the Russian
Resurs-DK1 satellite, and during ten years of nearly continuous data-taking it has observed …

Primordial black holes (PBHs) are predicted in many models via different formation
mechanisms. Identifying the origin of PBHs is of the same importance as probing their …

False vacuum remnants in first-order phase transitions in the early Universe can form
compact objects which may constitute dark matter. Such remnants form because particles …

We propose a novel scenario for DM in which weakly interacting massive particles (WIMPs)
can freeze-in due to a first-order phase transition (FOPT) in the early Universe. The FOPT …

Confinement in SU (N DC) Yang-Mills theories is known to proceed through first-order
phase transition. The wall velocity is bounded by vw≲ 10-6 due to the needed time for the …

The axion quark nuggets introduced in the literature are a candidate for cold dark matter
which, in addition, may be relevant in baryogenesis scenarios. The present work studies the …