15 Ekim 2024 Dergi makalesi Açık Erişim

CERN İşbirliği

MARC21 XML

<?xml version='1.0' encoding='UTF-8'?>
<record xmlns="http://www.loc.gov/MARC21/slim">
  <leader>00000nam##2200000uu#4500</leader>
  <datafield tag="909" ind1="C" ind2="O">
    <subfield code="p">user-scoap3-turkiye</subfield>
    <subfield code="o">oai:aperta.ulakbim.gov.tr:274651</subfield>
  </datafield>
  <datafield tag="520" ind1=" " ind2=" ">
    <subfield code="a">&lt;p&gt;Using proton–proton collision data corresponding to an integrated luminosity of     $140\phantom{\rule{0.333333em}{0ex}}{\text{fb}}^{-1}$   collected by the CMS experiment at     $\sqrt{s}=13\phantom{\rule{0.166667em}{0ex}}\text{Te}\phantom{\rule{-0.80002pt}{0ex}}\text{V}$  , the     ${\Lambda }_{\text{b}}^{0}\to \text{J}/\psi {\Xi }^{-}{\text{K}}^{+}$   decay is observed for the first time, with a statistical significance exceeding 5 standard deviations. The relative branching fraction, with respect to the     ${\Lambda }_{\text{b}}^{0}\to \psi \left(2\text{S}\right)\Lambda $   decay, is measured to be     $B\left({\Lambda }_{\text{b}}^{0}\to \text{J}/\psi {\Xi }^{-}{\text{K}}^{+}\right)/B\left({\Lambda }_{\text{b}}^{0}\to \psi \left(2\text{S}\right)\Lambda \right)=\left[3.38±1.02±0.61±0.03\right]%$  , where the first uncertainty is statistical, the second is systematic, and the third is related to the uncertainties in     $B\left(\psi \left(2\text{S}\right)\to \text{J}/\psi {\pi }^{+}{\pi }^{-}\right)$   and     $B\left({\Xi }^{-}\to \Lambda {\pi }^{-}\right)$  .&lt;/p&gt;</subfield>
  </datafield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">publication</subfield>
    <subfield code="b">article</subfield>
  </datafield>
  <datafield tag="540" ind1=" " ind2=" ">
    <subfield code="a">Creative Commons Attribution</subfield>
    <subfield code="u">http://www.opendefinition.org/licenses/cc-by</subfield>
  </datafield>
  <datafield tag="100" ind1=" " ind2=" ">
    <subfield code="a">CERN İşbirliği</subfield>
    <subfield code="u">CERN</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2=" ">
    <subfield code="z">md5:bd7274e1805fa55bd06e5d5f67b836c1</subfield>
    <subfield code="s">2466623</subfield>
    <subfield code="u">https://aperta.ulakbim.gov.trrecord/274651/files/s10052-024-13114-9_a.pdf</subfield>
  </datafield>
  <controlfield tag="005">20250417103202.0</controlfield>
  <datafield tag="260" ind1=" " ind2=" ">
    <subfield code="c">2024-10-15</subfield>
  </datafield>
  <datafield tag="024" ind1=" " ind2=" ">
    <subfield code="a">10.1140/epjc/s10052-024-13114-9</subfield>
    <subfield code="2">doi</subfield>
  </datafield>
  <datafield tag="542" ind1=" " ind2=" ">
    <subfield code="l">open</subfield>
  </datafield>
  <datafield tag="245" ind1=" " ind2=" ">
    <subfield code="a">Observation of the     ${\Lambda }_{\text{b}}^{0}\to \text{J}/\psi {\Xi }^{-}{\text{K}}^{+}$   decay</subfield>
  </datafield>
  <datafield tag="909" ind1="C" ind2="4">
    <subfield code="v">84</subfield>
    <subfield code="p">European Physical Journal C</subfield>
    <subfield code="n">10</subfield>
  </datafield>
  <datafield tag="650" ind1="1" ind2="7">
    <subfield code="a">cc-by</subfield>
    <subfield code="2">opendefinition.org</subfield>
  </datafield>
  <controlfield tag="001">274651</controlfield>
  <datafield tag="980" ind1=" " ind2=" ">
    <subfield code="a">user-scoap3-turkiye</subfield>
  </datafield>
</record>