Search for bottom-squark pair production with the ATLAS detector in final states containing Higgs bosons, b-jets and missing transverse momentum
2019
Abstract
The result of a search for the pair production of the lightest supersymmetric partner of the bottom quark using 139 fb^-1 of proton-proton data collected at root(s) =13TeV by the ATLAS detector is reported. In the supersymmetric scenarios considered both of the bottom-squarks decay into a b-quark and the second-lightest neutralino.
The final states considered contain no charged leptons, three or more b-jets, and large missing transverse momentum. No signicant excess of events over the Standard Model background expectation is observed in any of the signal regions considered.
Limits at the 95% condence level are placed in the supersymmetric models considered, and bottom-squarks with mass up to 1.5TeV are excluded.