(In)visible Z' and Dark Matter

par Alberto Romagnoni (University of Madrid)

mardi 15 mars 2011, 11:00 → 12:00 Europe/Paris

Auditorium M. Vivargent (LAPTH)

We study the consequences of an extension of the standard model containing an invisible extra gauge group under which the SM particles are neutral. We show that effective operators, generated by an high-energy physics connecting the new gauge sector to the Standard Model, can open a new portal and give rise to a viable dark matter candidate. Its annihilations produce clean visible signals through a gamma-ray line. This would be a smoking gun signature of such models observable by actual experiments.

Slides Romagnoni