Search for squarks and gluinos in final states with hadronically decaying τ-leptons, jets, and missing transverse momentum using pp collisions at root s =13 TeV with the ATLAS detector
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Show full item recordEditorial
American Physical Society
Date
2019-01-18Referencia bibliográfica
Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., ... & Abreu, H. (2019). Search for squarks and gluinos in final states with hadronically decaying τ-leptons, jets, and missing transverse momentum using p p collisions at s= 13 TeV with the ATLAS detector. Physical Review D, 99(1), 012009.
Sponsorship
We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF and DNSRC, Denmark; IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT, Greece; RGC, Hong Kong SAR, China; ISF, I-CORE and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; NWO, Netherlands; RCN, Norway; MNiSW and NCN, Poland; FCT, Portugal; MNE/IFA, Romania; MES of Russia and NRC KI, Russian Federation; JINR; MESTD, Serbia; MSSR, Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South Africa; MINECO, Spain; SRC and Wallenberg Foundation, Sweden; SERI, SNSF and Cantons of Bern and Geneva, Switzerland;MOST, Taiwan; TAEK, Turkey; STFC, United Kingdom; DOE and NSF, United States of America. In addition, individual groups and members have received support from BCKDF, the Canada Council, CANARIE, CRC, Compute Canada,FQRNT, and theOntario Innovation Trust, Canada; EPLANET, ERC, ERDF, FP7, Horizon 2020 and Marie Skłodowska-Curie Actions, European Union; Investissements d’Avenir Labex and Idex, ANR, R´egion Auvergne and Fondation Partager le Savoir, France; DFG and AvH Foundation, Germany; Herakleitos, Thales and Aristeia programmes co-financed by EU-ESF and the Greek NSRF; BSF, GIF and Minerva, Israel; BRF, Norway; CERCA Programme Generalitat de Catalunya, Generalitat Valenciana, Spain; the Royal Society and Leverhulme Trust, United Kingdom.Abstract
A search for supersymmetry in events with large missing transverse momentum, jets, and at least one
hadronically decaying τ-lepton is presented. Two exclusive final states with either exactly one or at least
two τ-leptons are considered. The analysis is based on proton-proton collisions at root s = 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 τ-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 tan β in the range 2 ≤ tan β ≤ 60, and below 120 TeV for tan β > 30.