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    Dark Interactions: Perspectives from Theory and Experiment

    11–13 Jun 2014
    Brookhaven National Laboratory
    US/Eastern timezone

    Workshop Coordinator

    Session

    Low-energy Direct Searches for Dark Photons

    11 Jun 2014, 11:00
    Physics Department, Bldg. 510, Large Seminar Room (Brookhaven National Laboratory)

    Physics Department, Bldg. 510, Large Seminar Room

    Brookhaven National Laboratory

    Conveners

    Low-energy Direct Searches for Dark Photons

    • Rouven Essig (Stony Brook University)

    Presentation materials

    There are no materials yet.

    1. 3. Dark Light
      Charles Epstein (MIT)
      11/06/2014, 11:00
      The DarkLight experiment aims to search for a dark photon in the low mass region 10-100 MeV/c^2. By using the Jefferson Lab FEL’s high-intensity 100 MeV, 1 MW electron beam incident on a gaseous hydrogen target, the process ep -> ep,e+/e- will be studied. To search for a dark photon, full track reconstruction of the four-particle final state will be performed in order to observe a resonance on...
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    2. 4. APEX - The APrime EXperiment at Jefferson Lab
      James Beacham (New York University)
      11/06/2014, 11:20
      APEX is a fixed target experiment in Experimental Hall A at Thomas Jefferson National Accelerator Facility (JLab) in Virginia, USA, that is designed to search for a new gauge boson (A') with sub-GeV mass and coupling to ordinary matter of g'/e ~ (1 - 10^-4). Electrons impinge upon a fixed target of high-Z material to produce an A' via a process analogous to photon bremsstrahlung. The A' then...
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    3. 5. HPS -- The Heavy Photon Search Experiment at JLab
      John A Jaros (SLAC National Accelerator Laboratory)
      11/06/2014, 11:40
      HPS is an new experiment at Jefferson Laboratory designed to look for hidden sector photons in the mass range 20 - 1000 MeV with couplings a'/a in the range 10-5 to 10-10. Presently under construction, HPS will be installed this fall in Hall B at JLab, commission thereafter, and take data in 2015. Heavy photons are identified as invariant mass bumps and as separated decay verticies. The...
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    4. 6. Mainz MAMI
      Michael Distler (University Mainz, Germany)
      11/06/2014, 12:00
      The A1 collaboration at the Mainz Microtron has concluded a pilot study in 2011 and data taking periods in 2012/2013 to search for a dark photon. The focus of the experiment was on the mass range between 50-200 MeV where dark matter provides a possible explanation for the discrepancy in the anomalous magnetic moment of the muon (g-2). The analysis is finished and the final exclusion limits...
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    5. 7. Discussion
      11/06/2014, 12:20
    Building timetable...