Speaker
Xiaowen Lei
(University of Arizona (US))
Description
Given that the Standard Model is very successful in
describing the nature and no clue is found on the scale of new
physics, signature-based search covering a wide range of final states
and topologies has been more important nowadays. Searches for
fermionic top/bottom quark partners, referred to as vector-like
quarks, have been performed in various final states with leptons, jets
and missing transverse momentum (pT). Searches in final states with a
high pT jet or boson recoiling against large missing energy are quite
powerful for dark matter production. Long-lived, weakly-interacting
particles predicted by various BSM models often lead to a signature
with displaced decay vertices in ATLAS detector. This talk highlights
ATLAS searches on vector-like quarks, dark matter and long-lived
particles in LHC Run 1 data.
