909 citations · 7.8k across the 141 of their papers we have counts for
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Spectator Dark Matter and the Higgs Portal
Stephen E. Henrich, Yann Mambrini, Keith A. Olive
Light scalar spectators generically acquire large stochastic fluctuations during inflation, which can lead to a catastrophic overproduction of dark matter if the resulting primordi…
PBH runaway during reheating
Md Riajul Haque, Mathieu Gross, Mathieu Houlier +1
The growth of primordial black holes through the absorption of the surrounding plasma has recently been shown to exhibit a critical behavior during radiation domination. We extend…
Seesaw reheating
Yann Mambrini
We introduce the Seesaw Reheating scenario, in which the inflaton transfers its energy to a long-lived intermediate scalar associated with the spontaneous breaking of lepton number…
When direct detection constrains reheating temperature: freeze-in with stronger couplings and inflaton-seeded freeze-in
Xavier Bertou, Olivier Deligny, Mathieu Gross +2
Recent results from the DAMIC-M and PandaX collaborations have excluded the standard freeze-in production of dark matter for masses in the range $3~\mathrm{MeV} \lesssim m_χ\lesssi…
Searching for UFOs from the early universe: direct detection prospects for relativistically decoupling dark matter
Stephen E. Henrich, Yann Mambrini, Keith A. Olive
Particles that decouple relativistically from the Standard Model bath during reheating represent a versatile class of well-motivated cold dark matter candidates. In fact, ultrarela…
When Primordial Black Holes Absorb During the Early Universe
Md Riajul Haque, Rajesh Karmakar, Yann Mambrini
We study the evolution of primordial black holes (PBHs) formed in the early universe in the presence of a surrounding thermal bath. By incorporating the effects of thermal absorpti…