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Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at vs = 13 TeV with the ATLAS detector

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journal contribution
posted on 2023-06-12, 08:46 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Antonella De SantoAntonella De Santo, Fabrizio SalvatoreFabrizio Salvatore, Kerim Suruliz, Mark SuttonMark Sutton, Iacopo VivarelliIacopo Vivarelli, The ATLAS collaboration, others
A search for the supersymmetric partners of the Standard Model bottom and top quarks is presented. The search uses 36.1 fb-1 of pp collision data at vs = 13 TeV collected by the ATLAS experiment at the Large Hadron Collider. Direct production of pairs of bottom and top squarks (b˜1 and t˜1) is searched for in final states with b-tagged jets and missing transverse momentum. Distinctive selections are defined with either no charged leptons (electrons or muons) in the final state, or one charged lepton. The zero-lepton selection targets models in which the b˜1 is the lightest squark and decays via b˜1 ? b?˜01 , where ˜?01 is the lightest neutralino. The one-lepton final state targets models where bottom or top squarks are produced and can decay into multiple channels, b˜1 ? b?˜01 and b˜1 ? t?˜±1, or t˜1 ? t?˜01 and t˜1? b?˜±1, where ˜?±1 is the lightest chargino and the mass difference m?˜±1 - m?˜01 is set to 1 GeV. No excess above the expected Standard Model background is observed. Exclusion limits at 95% confidence level on the mass of third-generation squarks are derived in various supersymmetry-inspired simplified models.

History

Publication status

  • Published

File Version

  • Published version

Journal

Journal of High Energy Physics

ISSN

1126-6708

Publisher

Institute of Physics

Issue

11

Volume

7

Page range

1-49

Article number

a195

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-11-22

First Open Access (FOA) Date

2017-11-22

First Compliant Deposit (FCD) Date

2017-11-22

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