1 Ocak 2021 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/240590</identifier>
  <creators>
    <creator>
      <creatorName>CERN İşbirliği</creatorName>
      <affiliation>CERN</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Observation Of A Resonant Structure In → And Another In → At Center-Of-Mass Energies Between 2.00 And 3.08 Gev</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2021</publicationYear>
  <dates>
    <date dateType="Issued">2021-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/240590</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.physletb.2020.136059</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;Born cross sections for the processes ${e}^{+}{e}^{-}\to \omega \eta $ and ${e}^{+}{e}^{-}\to \omega {\pi }^{0}$ have been determined for center-of-mass energies between 2.00 and 3.08 GeV with the BESIII detector at the BEPCII collider. The results obtained in this work are consistent with previous measurements but with improved precision. Two resonant structures are observed. In the ${e}^{+}{e}^{-}\to \omega \eta $ cross sections, a resonance with a mass of $\left(2176&amp;plusmn;24&amp;plusmn;3\right)\phantom{\rule{0.2em}{0ex}}\text{MeV}/{c}^{2}$ and a width of $\left(89&amp;plusmn;50&amp;plusmn;5\right)\phantom{\rule{0.2em}{0ex}}\text{MeV}$ is observed with a significance of 6.2&amp;sigma;. Its properties are consistent with the $\varphi \left(2170\right)$. In the ${e}^{+}{e}^{-}\to \omega {\pi }^{0}$ cross sections, a resonance denoted $Y\left(2040\right)$ is observed with a significance of more than 10&amp;sigma;. Its mass and width are determined to be $\left(2034&amp;plusmn;13&amp;plusmn;9\right)\phantom{\rule{0.2em}{0ex}}\text{MeV}/{c}^{2}$ and $\left(234&amp;plusmn;30&amp;plusmn;25\right)\phantom{\rule{0.2em}{0ex}}\text{MeV}$, respectively, where the first uncertainties are statistical and the second ones are systematic.&lt;/p&gt;</description>
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