1 Ocak 2022 Dergi makalesi Açık Erişim

CERN İşbirliği

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>CERN İşbirliği</dc:creator>
  <dc:date>2022-01-01</dc:date>
  <dc:description>A search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass energy of     $\sqrt{s}$   = 13 T    $\text{eV}$   between 2015 and 2018 with the ATLAS detector at the LHC, corresponding to an integrated luminosity of 136 fb    ${}^{-1}$  . Long-lived charginos are characterised by a distinct signature of a short and then disappearing track, and are reconstructed using at least four measurements in the ATLAS pixel detector, with no subsequent measurements in the silicon-microstrip tracking volume nor any associated energy deposits in the calorimeter. The final state is complemented by a large missing transverse-momentum requirement for triggering purposes and at least one high-transverse-momentum jet. No excess above the expected backgrounds is observed. Exclusion limits are set at 95% confidence level on the masses of the chargino and gluino for different chargino lifetimes. Chargino masses up to 660 (210) G    $\text{eV}$   are excluded in scenarios where the chargino is a pure wino (higgsino). For charginos produced during the cascade decay of a heavy gluino, gluinos with masses below 2.1 T    $\text{eV}$   are excluded for a chargino mass of 300 G    $\text{eV}$   and a lifetime of 0.2 ns.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/262625</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:262625</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>European Physical Journal C 82(7)</dc:source>
  <dc:title>Search for long-lived charginos based on a disappearing-track signature using 136 fb    ${}^{-1}$   of pp collisions at     $\sqrt{s}$   = 13 TeV with the ATLAS detector</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>