Benchmarking LHC searches for light 2HDM+$\boldsymbol{a}$ pseudoscalars

Abstract

Using two suitable benchmark scenarios that satisfy the experimental constraints on the total decay width of the 125 GeV Higgs boson, we determine the bounds on light CP-odd spin-0 states in the 2HDM+a model that arise from existing LHC searches. Our work should prove useful for 2HDM+a interpretations of future ATLAS, CMS and LHCb searches for pseudoscalars with masses below the electroweak scale.

Theoretical Overview on novel BSM models

“…More recently ref. [8] pinpointed that also searches of light resonances decaying into muon pairs can also effectively probe the parameters space of the model.…”

The THDMa and possible $e^+e^-$ signatures

“…This model has extensively been studied in light of hadron colliders, and more details can e.g. be found in [17][18][19][20][21][22][23][24].…”