PhysRevD.99.012009.pdf (3.61 MB)
Search for squarks and gluinos in final states with hadronically decaying t -leptons, jets, and missing transverse momentum using pp collisions at vs = 13 TeV with the ATLAS detector
Version 2 2023-06-12, 08:54
Version 1 2023-06-09, 16:09
journal contribution
posted on 2023-06-12, 08:54 authored by N L Abraham, Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, C Chavez Barajas, Antonella De SantoAntonella De Santo, Samuel Jones, G Lerner, F Miano, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, Kate ShawKate Shaw, Thomas StevensonThomas Stevenson, K Suruliz, Mark SuttonMark Sutton, F Tresoldi, Fabrizio Trovato, Iacopo Vivarelli, E Winkels, O J Winston, The ATLAS Collaboration, othersA search for supersymmetry in events with large missing transverse momentum, jets, and at least one hadronically decaying t -lepton is presented. Two exclusive final states with either exactly one or at least two t-leptons are considered. The analysis is based on proton-proton collisions at vs = 13 TeV corresponding to an integrated luminosity of 36.1 fb -1 delivered by the Large Hadron Collider and recorded by the ATLAS detector in 2015 and 2016. No significant excess is observed over the Standard Model expectation. At 95% confidence level, model-independent upper limits on the cross section are set and exclusion limits are provided for two signal scenarios: a simplified model of gluino pair production with t-rich cascade decays, and a model with gauge-mediated supersymmetry breaking (GMSB). In the simplified model, gluino masses up to 2000 GeV are excluded for low values of the mass of the lightest supersymmetric particle (LSP), while LSP masses up to 1000 GeV are excluded for gluino masses around 1400 GeV. In the GMSB model, values of the supersymmetry-breaking scale are excluded below 110 TeV for all values of tanß in the range 2=tanß=60, and below 120 TeV for tanß>30.
History
Publication status
- Published
File Version
- Published version
Journal
Physical Review DISSN
2470-0010Publisher
American Physical SocietyExternal DOI
Issue
1Volume
99Page range
012009 1-34Department affiliated with
- Physics and Astronomy Publications
Research groups affiliated with
- Experimental Particle Physics Research Group Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2018-12-07First Open Access (FOA) Date
2018-12-07First Compliant Deposit (FCD) Date
2018-12-06Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC