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Xenophobic dark matter

Feng, Jonathan L. and Kumar, Jason and Sanford, David (2013) Xenophobic dark matter. Physical Review D, 88 (1). Art. No. 015021. ISSN 2470-0010. doi:10.1103/PhysRevD.88.015021.

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We consider models of xenophobic dark matter, in which isospin-violating dark matter–nucleon interactions significantly degrade the response of xenon direct detection experiments. For models of near-maximal xenophobia, with neutron-to-proton coupling ratio f_n/f_p ≈ -0.64, and dark matter mass near 8 GeV, the regions of interest for CoGeNT and CDMS-Si and the region of interest identified by Collar and Fields in CDMS-Ge data can be brought into agreement. This model may be tested in future direct, indirect, and collider searches. Interestingly, because the natural isotope abundance of xenon implies that xenophobia has its limits, we find that this xenophobic model may be probed in the near future by xenon experiments. Near-future data from the LHC and Fermi-LAT may also provide interesting alternative probes of xenophobic dark matter.

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Additional Information:© 2013 American Physical Society. Received 20 June 2013; published 15 July 2013. We are grateful to E. Figueroa and D. McKinsey for useful discussions. We are grateful to the organizers of the APS April Meeting, to the organizers of the Light Dark Matter Workshop at MCTP, and to the KITP, where part of this work was conducted. The work of J. L. F. is supported in part by NSF Grant No. PHY-0970173 and a Simons Foundation Fellowship. The work of J. K. prior to June 1, 2013 was supported in part by U.S. Department of Energy Grant No. DE-FG02-04ER41291. D. S. is supported in part by U.S. Department of Energy Grant No. DE-FG02-92ER40701 and by the Gordon and Betty Moore Foundation through Grant No. 776 to the Caltech Moore Center for Theoretical Cosmology and Physics.
Group:Caltech Theory, Moore Center for Theoretical Cosmology and Physics
Funding AgencyGrant Number
Simons Foundation FellowshipUNSPECIFIED
Department of Energy (DOE)DE-FG02-04ER41291
Department of Energy (DOE)DE-FG02-92ER40701
Gordon and Betty Moore Foundation776
Caltech Moore Center for Theoretical Cosmology and PhysicsUNSPECIFIED
Issue or Number:1
Classification Code:PACS: 95.35.+d, 12.60.Jv
Record Number:CaltechAUTHORS:20130815-080352449
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39933
Deposited By: Tony Diaz
Deposited On:16 Aug 2013 23:03
Last Modified:09 Nov 2021 23:48

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