@Article{ATLASCollaborationAaboud_etal2017,
author="ATLAS Collaboration (Aaboud, M. et al
and Alvarez Piqueras, D.
and Barranco Navarro, L.
and Cabrera Urban, S.
and Castillo Gimenez, V.
and Cerda Alberich, L.
and Costa, M. J.
and Escobar, C.
and Estrada Pastor, O.
and Fernandez Martinez, P.
and Ferrer, A.
and Fiorini, L.
and Fuster, J.
and Garcia, C.
and Garcia Navarro, J. E.
and Gonzalez de la Hoz, S.
and Higon-Rodriguez, E.
and Jimenez Pena, J.
and Lacasta, C.
and Madaffari, D.
and Mamuzic, J.
and Marti-Garcia, S.
and Melini, D.
and Mitsou, V. A.
and Pedraza Lopez, S.
and Rodriguez Bosca, S.
and Rodriguez Rodriguez, D.
and Romero Adam, E.
and Salt, J.
and Sanchez Martinez, V.
and Soldevila, U.
and Sanchez, J.
and Valero, A.
and Valls Ferrer, J. A.
and Vos, M.",
title="Search for direct top squark pair production in events with a Higgs or Z boson, and missing transverse momentum in root s=13 TeV pp collisions with the ATLAS detector",
journal="Journal of High Energy Physics",
year="2017",
publisher="Springer",
volume="08",
number="8",
pages="006--46pp",
optkeywords="Beyond Standard Model; Hadron-Hadron scattering (experiments); Higgs physics",
abstract="A search for direct top squark pair production resulting in events with either a same-flavour opposite-sign dilepton pair with invariant mass compatible with a Z boson or a pair of jets compatible with a Standard Model (SM) Higgs boson (h) is presented. Requirements on the missing transverse momentum, together with additional selections on leptons, jets, jets identified as originating from b-quarks are imposed to target the other decay products of the top squark pair. The analysis is performed using proton-proton collision data at root s = 13 TeV collected with the ATLAS detector at the LHC in 20152016, corresponding to an integrated luminosity of 36.1 fb(-1). No excess is observed in the data with respect to the SM predictions. The results are interpreted in two sets of models. In the first set, direct production of pairs of lighter top squarks ((t) over tilde (1)) with long decay chains involving Z or Higgs bosons is considered. The second set includes direct pair production of the heavier top squark pairs ((t) over tilde (2)) decaying via (t) over tilde (2) -> Z (t) over tilde (1) or (t) over tilde (2) -> h (t) over tilde (1). The results exclude at 95{\%} confidence level (t) over tilde (2) and (t) over tilde (1) masses up to about 800 GeV, extending the exclusion region of supersymmetric parameter space covered by previous LHC searches.",
optnote="WOS:000406886200006",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3235), last updated on Fri, 25 Aug 2017 13:48:58 +0000",
issn="1029-8479",
doi="10.1007/JHEP08(2017)006",
opturl="http://arxiv.org/abs/1706.03986",
opturl="https://doi.org/10.1007/JHEP08(2017)006",
archivePrefix="arXiv",
eprint="1706.03986",
language="English"
}