Saad Shaikh: Hunting for New Physics with Pulsar Timing Arrays and other Gravitational Wave Observatories

Tuesday 19 Dec 2023, 11:00 → 12:00 Europe/Ljubljana

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (F1 tea room)

Recently, PTAs have seen convincing evidence for a stochastic GW background at nanohertz frequencies. The new PTA results strongly suggest new physics explanations of the observed stochastic GW signal. In this talk, I will focus on a particular new physics explanation of this dataset: cosmic strings arising from grand unified theories. As will be discussed, a confirmation of the latest findings will hint towards a specific class of models.

Saad.pdf