Speaker
Nicklas Ramberg
(SISSA Trieste)
Description
We investigate how gravitational wave (GW) observations can reveal the structure of hidden sectors beyond the Standard Model. We make use of GW's from Local/Global string to analyze cases with sequential decoupling of new degrees of freedom which can produce a distinctive “stairway” pattern in the GW spectrum. Focusing on two benchmarks—a dark QCD-like theory and a model with a Kaluza-Klein tower—we try to study how such features could distinguish different hidden sectors. We assess the possibility in a simplified study of the SNR in LISA, in which a more rigorous statistical study and potential full reconstruction are for the future
