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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

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73582649" target="_blank" >RIV/61989592:15310/17:73582649 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21220/17:00319569 RIV/68407700:21340/17:00319569 RIV/68407700:21670/17:00319569 RIV/00216208:11320/17:10369363

  • Result on the web

    <a href="https://link.springer.com/content/pdf/10.1007%2FJHEP08%282017%29006.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007%2FJHEP08%282017%29006.pdf</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP08(2017)006" target="_blank" >10.1007/JHEP08(2017)006</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    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

  • Original language description

    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) -&gt; Z (t) over tilde (1) or (t) over tilde (2) -&gt; 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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10303 - Particles and field physics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of High Energy Physics (online)

  • ISSN

    1029-8479

  • e-ISSN

  • Volume of the periodical

    2017

  • Issue of the periodical within the volume

    8

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    46

  • Pages from-to

    "006-1"-"006-46"

  • UT code for WoS article

    000406886200006

  • EID of the result in the Scopus database

    2-s2.0-85026906104