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Title: Prospects for detection of target-dependent annual modulation in direct dark matter searches

Journal Article · · Journal of Cosmology and Astroparticle Physics
 [1];  [2];  [2]
  1. Univ. of California, Los Angeles, CA (United States). Department of Physics and Astronomy; Universita di Padova, and INFN—Sezione di Padova (Italy). Dipartimento di Fisica e Astronomia
  2. Univ. of California, Los Angeles, CA (United States). Department of Physics and Astronomy

Earth's rotation about the Sun produces an annual modulation in the expected scattering rate at direct dark matter detection experiments. The annual modulation as a function of the recoil energy ER imparted by the dark matter particle to a target nucleus is expected to vary depending on the detector material. However, for most interactions a change of variables from ER to vmin, the minimum speed a dark matter particle must have to impart a fixed ER to a target nucleus, produces an annual modulation independent of the target element. We recently showed that if the dark matter-nucleus cross section contains a non-factorizable target and dark matter velocity dependence, the annual modulation as a function of vmin can be target dependent. Here we examine more extensively the necessary conditions for target-dependent modulation, its observability in present-day experiments, and the extent to which putative signals could identify a dark matter-nucleus differential cross section with a non-factorizable dependence on the dark matter velocity.

Research Organization:
Univ. of California, Los Angeles, CA (United States). Department of Physics and Astronomy
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0009937
OSTI ID:
1434599
Journal Information:
Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 02; ISSN 1475-7516
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

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Cited By (4)

Casting a wide signal net with future direct dark matter detection experiments journal July 2018
Assessing Near-Future Direct Dark Matter Searches with Benchmark-Free Forecasting journal November 2018
Review of strongly-coupled composite dark matter models and lattice simulations journal August 2016
Casting a Wide Signal Net with Future Direct Dark Matter Detection Experiments text January 2018

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