1 Ocak 2022 Dergi makalesi Açık Erişim

CERN İşbirliği

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  <dc:creator>CERN İşbirliği</dc:creator>
  <dc:date>2022-01-01</dc:date>
  <dc:description>The radiative hyperon decay $\Lambda \to n\gamma $ is studied using $\left(10087±44\right)×{10}^{6}\text{}\text{}J/\psi $ events collected with the BESIII detector operating at BEPCII. The absolute branching fraction of the decay $\Lambda \to n\gamma $ is determined to be $\left(0.832±0.03{8}_{\mathrm{stat}}±0.05{4}_{\mathrm{syst}}\right)×{10}^{-3}$, which is a factor of 2.1 lower and 5.6 standard deviations different than the previous measurement. By analyzing the joint angular distribution of the decay products, the first determination of the decay asymmetry ${\alpha }_{\gamma }$ is reported with a value of $-0.16±0.1{0}_{\mathrm{stat}}±0.0{5}_{\mathrm{syst}}$.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/262487</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:262487</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>Physical Review Letters 129(21)</dc:source>
  <dc:title>Measurement of the Absolute Branching Fraction and Decay Asymmetry of $\Lambda \to n\gamma $</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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