PIRSA:23020053

Formation of Primordial black hole during the QCD phase-transition

Musco, I. (2023). Formation of Primordial black hole during the QCD phase-transition. Perimeter Institute. https://pirsa.org/23020053

Musco, Ilia. Formation of Primordial black hole during the QCD phase-transition. Perimeter Institute, Feb. 16, 2023, https://pirsa.org/23020053 

          @misc{ pirsa_PIRSA:23020053,
            doi = {10.48660/23020053},
            url = {https://pirsa.org/23020053},
            author = {Musco, Ilia},
            keywords = {Strong Gravity},
            language = {en},
            title = {Formation of Primordial black hole during the QCD phase-transition},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {feb},
            note = {PIRSA:23020053 see, \url{https://pirsa.org}}
          }

Ilia Musco

Sapienza University of Rome

Talk number
PIRSA:23020053
Collection
Talk Type
Subject
Abstract

The formation of Primordial black holes is naturally enhanced during the quark-hadron phase transition, because of the softening of the equation of state: at a scale between 1 and 3 solar masses, the threshold is reduced of about 10% with a corresponding abundance of primordial black significantly increased by more than 100 times. Performing detailed numerical simulation we have computed the modified mass spectrum for such black holes. Making then a confutation with the LVK phenomenological models describing the GWTC-3 catalog, it is  shown that a sub-population of primordial black black holes formed in the solar mass range is compatible with the current observational constraint and could explain some of the interesting sources emitting gravitational waves detected by LIGO/VIRGO in the black hole mass gap, such as GW190814, and other light events.

Zoom Link:https://pitp.zoom.us/j/94805744664?pwd=Z3oyd05YWVlwenI5NFV6bFZOYUR0dz09