17–31 Jul 2025
Orthodox Academy of Crete, Kolymbari, Crete, Greece
Europe/Athens timezone
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Primordial Black Hole Evaporation as a Solution to the $^7$Li Abundance Problem

21 Jul 2025, 18:00
30m
Room 2

Room 2

Talk Workshop on Dark matter from micro to macro Workshop on Dark matter from micro to macro

Speaker

Elena Arbuzova (Dubna State University and Novosibirsk State University)

Description

The potential resolution of the problem of theoretically predicted
excessive $^7$Li abundance is explored through its destruction by nucleons emitted from evaporating primordial black holes. It is demonstrated that the $^7$Li-to-baryon number density ratio can be reduced to the observed value of $^7$Li/B $\sim 1.6 \times 10^{-10}$ by converting $^7$Li into $^8$Li or $^8$Be, both of which rapidly decay into pairs of Helium-4 nuclei.

Details

N/A

Internet talk No
Is this an abstract from experimental collaboration? No
Name of experiment and experimental site N/A
Is the speaker for that presentation defined? Yes

Author

Elena Arbuzova (Dubna State University and Novosibirsk State University)

Presentation materials