1 Ocak 2018 Dergi makalesi Açık Erişim

Bayar, M.; Pavao, R.; Sakai, S.; Oset, E.

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/106903</identifier>
  <creators>
    <creator>
      <creatorName>Bayar, M.</creatorName>
      <givenName>M.</givenName>
      <familyName>Bayar</familyName>
      <affiliation>Department of Physics, Kocaeli University, 41380 Izmit, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Pavao, R.</creatorName>
      <givenName>R.</givenName>
      <familyName>Pavao</familyName>
      <affiliation>Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Aptdo.22085, 46071 Valencia, Spain</affiliation>
    </creator>
    <creator>
      <creatorName>Sakai, S.</creatorName>
      <givenName>S.</givenName>
      <familyName>Sakai</familyName>
      <affiliation>Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Aptdo.22085, 46071 Valencia, Spain</affiliation>
    </creator>
    <creator>
      <creatorName>Oset, E.</creatorName>
      <givenName>E.</givenName>
      <familyName>Oset</familyName>
      <affiliation>Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia-CSIC Institutos de Investigación de Paterna, Aptdo.22085, 46071 Valencia, Spain</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Role Of The Triangle Singularity In $\Lambda \Left(1405\Right)$ Production In The ${\Pi }^{-}P\To {K}^{0}\Pi \Sigma $ And $Pp\To P{K}^{+}\Pi \Sigma $ Processes</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2018</publicationYear>
  <dates>
    <date dateType="Issued">2018-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/106903</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1103/PhysRevC.97.035203</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;We have investigated the cross section for the ${\pi }^{-}p\to {K}^{0}\pi \Sigma $ and $pp\to p{K}^{+}\pi \Sigma $ reactions, paying attention to a mechanism that develops a triangle singularity. The triangle diagram is realized by the decay of a ${N}^{*}$ to ${K}^{*}\Sigma $ and the ${K}^{*}$ decay into $\pi K$, and the $\pi \Sigma $ finally merges into $\Lambda \left(1405\right)$. The mechanism is expected to produce a peak around $2140\phantom{\rule{4pt}{0ex}}\mathrm{MeV}$ in the $K\Lambda \left(1405\right)$ invariant mass. We found that a clear peak appears around $2100\phantom{\rule{4pt}{0ex}}\mathrm{MeV}$ in the $K\Lambda \left(1405\right)$ invariant mass, which is about $40\phantom{\rule{4pt}{0ex}}\mathrm{MeV}$ lower than the expectation, and that is due to the resonance peak of a ${N}^{*}$ resonance which plays a crucial role in the ${K}^{*}\Sigma $ production. The mechanism studied produces the peak of the $\Lambda \left(1405\right)$ around or below 1400 MeV, as is seen in the $pp\to p{K}^{+}\pi \Sigma $ HADES experiment.&lt;/p&gt;</description>
  </descriptions>
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