Constraining portals with displaced decay searches at the LHC
by
Jackson Clarke(Melbourne University)
→
Europe/Rome
Aula Conversi (Dip. di Fisica - Edificio G. Marconi)
Aula Conversi
Dip. di Fisica - Edificio G. Marconi
Description
It is very easy to write down models in which long-lived particles decaying to standard model states are produced at the LHC. The peculiarity of the signature presents two complementary challenges: how do collaborations present their results in the most model-independent way possible? and how do phenomenologists reinterpret the results in the context of their own models? I will describe a simple Monte Carlo method which has implications for both. The short message is the following: if the relevant efficiency tables are published, then phenomenologists need only take Monte Carlo events and fold in these efficiencies to reinterpret searches. No displaced decays need be simulated since decay probabilities are easily calculated. I will describe the method by example, using two ATLAS searches to exclude regions in mixing-mass parameter space for the Higgs and vector portal models.
