<record>
  <controlfield tag="001">1777</controlfield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">dark sector</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">dark matter</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">ALP</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">invisible Z'</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">dark Z'</subfield>
  </datafield>
  <datafield tag="653" ind1="1" ind2=" ">
    <subfield code="a">sark photon</subfield>
  </datafield>
</record>