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Title: Coherent photon scattering background in sub- GeV / c 2 direct dark matter searches

Here, proposed dark matter detectors with eV-scale sensitivities will detect a large background of atomic (nuclear) recoils from coherent photon scattering of MeV-scale photons. This background climbs steeply below ~10 eV, far exceeding the declining rate of low-energy Compton recoils. The upcoming generation of dark matter detectors will not be limited by this background, but further development of eV-scale and sub-eV detectors will require strategies, including the use of low nuclear mass target materials, to maximize dark matter sensitivity while minimizing the coherent photon scattering background.
Authors:
ORCiD logo [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
Report Number(s):
arXiv:1610.07656; FERMILAB-PUB-16-474-A
Journal ID: ISSN 2470-0010; PRVDAQ; 1494349
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 95; Journal Issue: 2; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
OSTI Identifier:
1336412
Alternate Identifier(s):
OSTI ID: 1339778

Robinson, Alan E. Coherent photon scattering background in sub- GeV/c2 direct dark matter searches. United States: N. p., Web. doi:10.1103/PhysRevD.95.021301.
Robinson, Alan E. Coherent photon scattering background in sub- GeV/c2 direct dark matter searches. United States. doi:10.1103/PhysRevD.95.021301.
Robinson, Alan E. 2017. "Coherent photon scattering background in sub- GeV/c2 direct dark matter searches". United States. doi:10.1103/PhysRevD.95.021301. https://www.osti.gov/servlets/purl/1336412.
@article{osti_1336412,
title = {Coherent photon scattering background in sub- GeV/c2 direct dark matter searches},
author = {Robinson, Alan E.},
abstractNote = {Here, proposed dark matter detectors with eV-scale sensitivities will detect a large background of atomic (nuclear) recoils from coherent photon scattering of MeV-scale photons. This background climbs steeply below ~10 eV, far exceeding the declining rate of low-energy Compton recoils. The upcoming generation of dark matter detectors will not be limited by this background, but further development of eV-scale and sub-eV detectors will require strategies, including the use of low nuclear mass target materials, to maximize dark matter sensitivity while minimizing the coherent photon scattering background.},
doi = {10.1103/PhysRevD.95.021301},
journal = {Physical Review D},
number = 2,
volume = 95,
place = {United States},
year = {2017},
month = {1}
}