Andrea Boccia - Primordial black holes and the "memory burden" effect

Tuesday 2 Sept 2025, 15:30 → 16:30 Europe/Stockholm

AlbaNova A5:1041 - CoPS grupprum (AlbaNova Main Building)

Christian Ohm (KTH Royal Institute of Technology), Milena Crnogorcevic (Stockholm University), Timothy Linden (Stockholm University), Tran Quang Thong Nguyen (Stockholm University)

Primordial black holes and the "memory burden" effect: observables in the local Universe

Andrea Boccia

We will introduce the "memory burden" effect in the context of black hole evaporation, and discuss how it may have profound impacts on the scenario in which primordial black holes constitute all or part of the dark matter. Within this context, we will discuss how the evaporation of primordial black holes in the local Universe may provide observables for constraining the mechanism and/or the scenario.
Most notably, neutrinos produced in the evaporation process are a so far little studied observable, and we use the latest IceCube data to place novel constraints on the combined parameter space of PBH masses and memory burden effects. Additionally, we have explored whether the ultra-high-energy neutrino event recently detected by KM3NeT could originate from an evaporating primordial black hole.

 

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This is the bi-weekly meeting of the OKC-BSM group (note the special time).

Those who are at AlbaNova are very welcome to join in the room, but there is also a zoom connection: Zoom link (room 104 167 778, password 737501)