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Title: Review of the theoretical and experimental status of dark matter identification with cosmic-ray antideuterons

Recent years have seen increased theoretical and experimental effort towards the first-ever detection of cosmic-ray antideuterons, in particular as an indirect signature of dark matter annihilation or decay. In contrast to indirect dark matter searches using positrons, antiprotons, or γ-rays, which suffer from relatively high and uncertain astrophysical backgrounds, searches with antideuterons benefit from very suppressed conventional backgrounds, offering a potential breakthrough in unexplored phase space for dark matter. This article is based on the first dedicated cosmic-ray antideuteron workshop, which was held at UCLA in June 2014. It reviews broad classes of dark matter candidates that result in detectable cosmic-ray antideuteron fluxes, as well as the status and prospects of current experimental searches. The coalescence model of antideuteron production and the influence of antideuteron measurements at particle colliders are discussed. This is followed by a review of the modeling of antideuteron propagation through the magnetic fields, plasma currents, and molecular material of our Galaxy, the solar system, the Earth’s geomagnetic field, and the atmosphere. Lastly, the three ongoing or planned experiments that are sensitive to cosmic-ray antideuterons, BESS, AMS-02, and GAPS, are detailed. As cosmic-ray antideuteron detection is a rare event search, multiple experiments with orthogonal techniques and backgroundsmore » are essential. Furthermore, the combination of AMS-02 and GAPS antideuteron searches is highly desirable. Many theoretical and experimental groups have contributed to these studies over the last decade, this review aims to provide the first coherent discussion of the relevant dark matter theories that antideuterons probe, the challenges to predictions and interpretations of antideuteron signals, and the experimental efforts toward cosmic antideuteron detection.« less
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  1. Columbia Univ., New York, NY (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. Univ. of California, Berkeley, CA (United States)
  3. INFN Sezione di Torino, Torino (Italy)
  4. Univ. of Oslo, Oslo (Norway)
  5. Univ. of Hawaii at Manoa, Honolulu, HI (United States)
  6. INFN Sezione di Torino, Torino (Italy); Univ. of Torino, Torino (Italy)
  7. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Kanagawa (Japan)
  8. Univ. Hamburg, Hamburg (Germany)
  9. Columbia Univ., New York, NY (United States)
  10. Univ. of Maryland, College Park, MD (United States)
  11. Technische Univ. Munchen, Garching (Germany)
  12. NASA/Goddard Space Flight Center, Greenbelt, MD (United States)
  13. Univ. of California, Los Angeles, CA (United States)
  14. Haverford College, Haverford, PA (United States)
  15. Univ. Savoie Mont Blanc, Annecy-le-Vieux (France)
  16. Univ. of Michigan, Ann Arbor, MI (United States)
  17. SISSA - International School for Advanced Studies, Trieste (Italy)
  18. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  19. High Energy Accelerator Research Organization (KEK), Ibaraki (Japan)
Publication Date:
Report Number(s):
Journal ID: ISSN 0370-1573; arXiv:1505.07785
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Physics Reports
Additional Journal Information:
Journal Volume: 618; Journal Issue: C; Journal ID: ISSN 0370-1573
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
79 ASTRONOMY AND ASTROPHYSICS; astrophysics; experiment-HEP; phenomenology-HEP; HEPPH; antideuteron; cosmic ray; dark matter; coalescence; propagation
OSTI Identifier: