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Real-Time Flavor Tagging Algorithms in ATLAS

Identifying and tagging jets originating from b-quarks (flavor tagging) at the trigger level is a necessary aspect for many physics analyses, such as: fully hadronic tt, single top, Higgs bosons decaying to a b-quark pair (H→bb), fully hadronic ttH, 2HDM CP-odd Higgs bosons produced in association with a b-quark (bA→bbb), exotic signatures decaying to multi b-jet final states, e.g. G→hh→bbbb, and supersymmetric signatures such as 3rd generation squarks. B-jet tagging at the trigger level in the ATLAS detector during Run 2 offers unique opportunities for improvements in boosting the rate of valuable, heavy-flavor events while suppressing light quark jets.