17–20 Jun 2024
National Galleries of Scotland
Europe/London timezone

Determining mass and spin of light PBHs

18 Jun 2024, 17:25
10m
National Galleries of Scotland

National Galleries of Scotland

The Mound, Edinburgh, EH2 2EL Scotland

Speaker

Marco Calza (University of Coimbra)

Description

We propose methods to determine the mass and spin of PBHs based on measuring specific features of the primary emitted Hawking spectra. In the previous edition of this conference, we focused on masses between 5 × 10^7 and 10^12 kg and adimensional spin parameter a = 0.1–0.5. Now we extend those ranges in distant independent ways.
We investigate values of a ≳ 0.6, measuring the energy and emission rate at the dipolar and quadrupolar peaks in the primary photon spectrum. This method is valid for any mass of the PBH.
We propose a multi-messenger approach to accurately measure the mass and spin of a PBH from its Hawking photon and neutrino primary emission spectra. This is of particular interest for temperature beyond the TeV scale since it is independent of putative interactions between new possible degrees of freedom and the Standard Model particles.

Primary authors

Marco Calza (University of Coimbra) João Rosa (University of Coimbra)

Presentation materials