8
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Search for Invisible Decays of Sub-GeV Dark Photons in Missing-Energy Events at the CERN SPS.

      1 , 2 , 1 , 1 , 1 , 3 , 4 , 5 , 2 , 1 , 6 , 7 , 8 , 3 , 9 , 4 , 3 , 9 , 3 , 3 , 10 , 11 , 3 , 3 , 10 , 2 , 7 , 7 , 4 , 7 , 7 , 7 , 3 , 4 , 1 , 1 , 4 , 5 , 3 , 3 , 2 , 2 , 10 , 10 , 5 , 8
      Physical review letters
      American Physical Society (APS)

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          We report on a direct search for sub-GeV dark photons (A^{'}), which might be produced in the reaction e^{-}Z→e^{-}ZA^{'} via kinetic mixing with photons by 100 GeV electrons incident on an active target in the NA64 experiment at the CERN SPS. The dark photons would decay invisibly into dark matter particles resulting in events with large missing energy. No evidence for such decays was found with 2.75×10^{9} electrons on target. We set new limits on the γ-A^{'} mixing strength and exclude the invisible A^{'} with a mass ≲100  MeV as an explanation of the muon g_{μ}-2 anomaly.

          Related collections

          Author and article information

          Journal
          Phys. Rev. Lett.
          Physical review letters
          American Physical Society (APS)
          1079-7114
          0031-9007
          Jan 06 2017
          : 118
          : 1
          Affiliations
          [1 ] ETH Zürich, Institute for Particle Physics, CH-8093 Zürich, Switzerland.
          [2 ] Tomsk Polytechnic University, 634050 Tomsk, Russia.
          [3 ] Institute for Nuclear Research, 117312 Moscow, Russia.
          [4 ] State Scientific Center of the Russian Federation Institute for High Energy Physics of National Research Center 'Kurchatov Institute' (IHEP), 142281 Protvino, Russia.
          [5 ] P.N. Lebedev Physics Institute, Moscow, Russia, 119991 Moscow, Russia.
          [6 ] CERN, European Organization for Nuclear Research, CH-1211 Geneva, Switzerland.
          [7 ] Joint Institute for Nuclear Research, 141980 Dubna, Russia.
          [8 ] Physics Department, University of Patras, 26504 Patras, Greece.
          [9 ] Universität Bonn, Helmholtz-Institut für Strahlen-und Kernphysik, 53115 Bonn, Germany.
          [10 ] Universidad Técnica Federico Santa María, 2390123 Valparaíso, Chile.
          [11 ] Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia.
          Article
          10.1103/PhysRevLett.118.011802
          28106454
          8bf2e3aa-b3cc-4a6b-84d5-298677447068
          History

          Comments

          Comment on this article