Aaboud2017_Article_SearchForSupersymmetryInEvents.pdf (1.15 MB)
Search for supersymmetry in events with b-tagged jets and missing transverse momentum in pp collisions at vs = 13 TeV with the ATLAS detector
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 Vivarelli, The ATLAS collaboration, othersA 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 PhysicsISSN
1126-6708Publisher
Institute of PhysicsExternal DOI
Issue
11Volume
7Page range
1-49Article number
a195Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes