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Search for top squarks decaying to tau sleptons in pp collisions at vs=13??TeV with the ATLAS detector

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journal contribution
posted on 2023-06-09, 15:49 authored by N L Abraham, Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Kate ShawKate Shaw, C A Chavez Barajas, Antonella De SantoAntonella De Santo, Samuel Jones, G Lerner, F Miano, Fabrizio SalvatoreFabrizio Salvatore, I Santoyo Castillo, C YH Shehu, Thomas StevensonThomas Stevenson, K Suruliz, Mark SuttonMark Sutton, Fabio Tresoldi, Iacopo Vivarelli, E Winkels, O L Winston, The ATLAS Collaboration, others
A search for direct pair production of top squarks in final states with two tau leptons, b -jets, and missing transverse momentum is presented. The analysis is based on proton-proton collision data at s v =13 TeV corresponding to an integrated luminosity of 36.1 fb -1 recorded with the ATLAS detector at the Large Hadron Collider in 2015 and 2016. Two exclusive channels with either two hadronically decaying tau leptons or one hadronically and one leptonically decaying tau lepton are considered. No significant deviation from the Standard Model predictions is observed in the data. The analysis results are interpreted in terms of model-independent limits and used to derive exclusion limits on the masses of the top squark t ~ 1 and the tau slepton t ~ 1 in a simplified model of supersymmetry with a nearly massless gravitino. In this model, masses up to m(t ~ 1 )=1.16 TeV and m(t ~ 1 )=1.00 TeV are excluded at 95% confidence level.

History

Publication status

  • Published

File Version

  • Published version

Journal

Physical Review D

ISSN

2470-0010

Publisher

American Physical Society

Issue

3

Volume

98

Page range

32008 1-33

Department 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

2018-11-09

First Open Access (FOA) Date

2018-11-09

First Compliant Deposit (FCD) Date

2018-11-08

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