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Nicklas Ramberg: Unveiling Hidden Sectors with Gravitational Waves (“The Gravitational Wave Stairway”)

February 20 at 15:30 - 16:30

In this talk we explore the potential of gravitational wave (GW) observations to probe the structure of hidden sectors beyond the Standard Model (BSM).  We argue that the sequential decoupling of new degrees of freedom in these sectors can leave a distinctive imprint on the GW spectrum, resembling a “stairway” pattern. We investigate how this signature can distinguish between different hidden sectors, focusing on two benchmark scenarios: a dark QCD-like theory and a model with a Kaluza-Klein (KK) tower of states. We analyze the sensitivity of current and future GW detectors, such as LISA and Einstein Telescope, to these multi-step spectral features, demonstrating the potential to uncover rich information about the particle content and dynamics of hidden sectors.
https://indico.ijs.si/event/2500/

Details

Date:
February 20
Time:
15:30 - 16:30
Website:
https://indico.ijs.si/event/2500/

Venue

https://zoom.us/j/3601731049?pwd=bVNQRjUxU2ExZ0cveWcxYXNUUGdjZz09 (A/1-106 – Seminarska soba fizike (F5))