1 Ocak 2020 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/104901</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Search For Higgs Boson Decays Into Two New Low-Mass Spin-0 Particles In The $4B$ Channel With The Atlas Detector Using $Pp$ Collisions At $\Sqrt{S}=13\Text{}\Text{}\Mathrm{Tev}$</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2020</publicationYear>
  <dates>
    <date dateType="Issued">2020-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/104901</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevD.102.112006</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;This paper describes a search for beyond the Standard Model decays of the Higgs boson into a pair of new spin-0 particles subsequently decaying into $b$-quark pairs, $H\to aa\to \left(b\overline{b}\right)\left(b\overline{b}\right)$, using proton-proton collision data collected by the ATLAS detector at the Large Hadron Collider at center-of-mass energy $\sqrt{s}=13\text{}\text{}\mathrm{TeV}$. This search focuses on the range $15\text{}\text{}\mathrm{GeV}\le {m}_{a}\le 30\text{}\text{}\mathrm{GeV}$, where the decay products are collimated; it is complementary to a previous search in the same final state targeting the range $20\text{}\text{}\mathrm{GeV}\le {m}_{a}\le 60\text{}\text{}\mathrm{GeV}$, where the decay products are well separated. A novel strategy for the identification of the $a\to b\overline{b}$ decays is deployed to enhance the efficiency for topologies with small separation angles. The search is performed with $36\text{}\text{}{\mathrm{fb}}^{-1}$ of integrated luminosity collected in 2015 and 2016 and sets upper limits on the production cross section of $H\to aa\to \left(b\overline{b}\right)\left(b\overline{b}\right)$, where the Higgs boson is produced in association with a $Z$ boson.&lt;/p&gt;</description>
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