Beyond the Standard Model with CMB and 21 cm data (via Zoom: https://mppmu.zoom.us/j/99300254726)

by Dr Andrea Caputo (Weizmann Inst. and Tel Aviv U. (main))

Thursday 5 Nov 2020, 11:00 → 12:00 Europe/Berlin

Zoom (Main)

I will introduce some well motivated Beyond The Standard Model (BSM) candidates and explain their effects on cosmological/astrophysical observables such as 21 cm and CMB data. In particular, I will first focus on Photon/ Dark Photon conversion in our inhomogeneous universe and its effect on the CMB spectrum. Then, I will add an axion-like particle to the model, which can play the role of dark matter, and investigate the effect of this extra energy injection onto the measured global 21-cm signal.