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Direct Detection Constraints on Dark Photon Dark Matter

An, Haipeng and Pospelov, Maxim and Pradler, Josef and Ritz, Adam (2015) Direct Detection Constraints on Dark Photon Dark Matter. Physics Letters B, 747 . pp. 331-338. ISSN 0370-2693. doi:10.1016/j.physletb.2015.06.018.

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Dark matter detectors built primarily to probe elastic scattering of WIMPs on nuclei are also precise probes of light, weakly coupled, particles that may be absorbed by the detector material. In this paper, we derive constraints on the minimal model of dark matter comprised of long-lived vector states V (dark photons) in the 0.01–100 keV100 keV mass range. The absence of an ionization signal in direct detection experiments such as XENON10 and XENON100 places a very strong constraint on the dark photon mixing angle, down to O(10^(−15)), assuming that dark photons comprise the dominant fraction of dark matter. This sensitivity to dark photon dark matter exceeds the indirect bounds derived from stellar energy loss considerations over a significant fraction of the available mass range. We also revisit indirect constraints from V→3γ decay and show that limits from modifications to the cosmological ionization history are comparable to the updated limits from the diffuse γ-ray flux.

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Additional Information:© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( Funded by SCOAP3. Received 20 January 2015; Received in revised form 7 May 2015; Accepted 10 June 2015; Available online 11 June 2015. We would like to thank Fei Gao, Liang Dai, and Jeremy Mardon for helpful discussions. HA is supported by the Walter Burke Institute at Caltech and by DOE Grant DE-SC0011632. The work of MP and AR is supported in part by NSERC, Canada, and research at the Perimeter Institute is supported in part by the Government of Canada through NSERC and by the Province of Ontario through MEDT. JP is supported by the New Frontiers program of the Austrian Academy of Sciences.
Group:Walter Burke Institute for Theoretical Physics
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Caltech Walter Burke Institute for Theoretical PhysicsUNSPECIFIED
Department of Energy (DOE)DE-SC0011632
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Government of CanadaUNSPECIFIED
Province of Ontario, Ministry of Economic Development and Trade (MEDT)UNSPECIFIED
Austrian Academy of Sciences New Frontiers ProgramUNSPECIFIED
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Record Number:CaltechAUTHORS:20150111-124658960
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Official Citation:Haipeng An, Maxim Pospelov, Josef Pradler, Adam Ritz, Direct detection constraints on dark photon dark matter, Physics Letters B, Volume 747, 30 July 2015, Pages 331-338, ISSN 0370-2693, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53540
Deposited By: Joy Painter
Deposited On:12 Jan 2015 02:44
Last Modified:10 Nov 2021 20:03

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