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Title: Disentangling dark matter dynamics with directional detection

Abstract

Inelastic dark matter reconciles the DAMA anomaly with other null direct detection experiments and points to a nonminimal structure in the dark matter sector. In addition to the dominant inelastic interaction, dark matter scattering may have a subdominant elastic component. If these elastic interactions are suppressed at low momentum transfer, they will have similar nuclear recoil spectra to inelastic scattering events. While upcoming direct detection experiments will see strong signals from such models, they may not be able to unambiguously determine the presence of the subdominant elastic scattering from the recoil spectra alone. We show that directional detection experiments can separate elastic and inelastic scattering events and discover the underlying dynamics of dark matter models.

Authors:
;  [1]
  1. Theory Group, SLAC, Menlo Park, California 94025 (United States)
Publication Date:
OSTI Identifier:
21409989
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 81; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.81.096005; (c) 2010 The American Physical Society; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELASTIC SCATTERING; INELASTIC SCATTERING; INTERACTIONS; MOMENTUM TRANSFER; NONLUMINOUS MATTER; RECOILS; SPECTRA; MATTER; SCATTERING

Citation Formats

Lisanti, Mariangela, and Wacker, Jay G. Disentangling dark matter dynamics with directional detection. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.81.096005.
Lisanti, Mariangela, & Wacker, Jay G. Disentangling dark matter dynamics with directional detection. United States. https://doi.org/10.1103/PHYSREVD.81.096005
Lisanti, Mariangela, and Wacker, Jay G. 2010. "Disentangling dark matter dynamics with directional detection". United States. https://doi.org/10.1103/PHYSREVD.81.096005.
@article{osti_21409989,
title = {Disentangling dark matter dynamics with directional detection},
author = {Lisanti, Mariangela and Wacker, Jay G},
abstractNote = {Inelastic dark matter reconciles the DAMA anomaly with other null direct detection experiments and points to a nonminimal structure in the dark matter sector. In addition to the dominant inelastic interaction, dark matter scattering may have a subdominant elastic component. If these elastic interactions are suppressed at low momentum transfer, they will have similar nuclear recoil spectra to inelastic scattering events. While upcoming direct detection experiments will see strong signals from such models, they may not be able to unambiguously determine the presence of the subdominant elastic scattering from the recoil spectra alone. We show that directional detection experiments can separate elastic and inelastic scattering events and discover the underlying dynamics of dark matter models.},
doi = {10.1103/PHYSREVD.81.096005},
url = {https://www.osti.gov/biblio/21409989}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 9,
volume = 81,
place = {United States},
year = {Sat May 01 00:00:00 EDT 2010},
month = {Sat May 01 00:00:00 EDT 2010}
}