Complementarity of dark matter direct detection: the role of bolometric targets

We study how the combined observation of dark matter in various direct detection experiments can be used to determine the phenomenological properties ofWIMP dark matter: mass, spin-dependent (SD) and spin-independent (SI) scattering cross section off nucleons. A convenient choice of target materials...

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Bibliographic Details
Published in:Journal of cosmology and astroparticle physics 2013-07, Vol.2013 (7), p.i-28
Main Authors: Cerdeno, D G, Cuesta, C, nasa, M, Garcia, E, Ginestra, C, Huh, Ji-Haeng, Martinez, M, Ortigoza, Y, Peiro, M, Puimedon, J, Robledo, L M, Sarsa, M L
Format: Article
Language:English
Subjects:
ALUMINIUM OXIDES
Aluminum oxide
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BOLOMETERS
CALCIUM TUNGSTATES
Cosmology
CROSS SECTIONS
Dark matter
GE SEMICONDUCTOR DETECTORS
GEV RANGE
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Joining
LITHIUM FLUORIDES
NONLUMINOUS MATTER
NUCLEONS
REST MASS
Scattering cross sections
SOLID SCINTILLATION DETECTORS
SPACE
SPIN
WIMPS
XENON
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Summary:We study how the combined observation of dark matter in various direct detection experiments can be used to determine the phenomenological properties ofWIMP dark matter: mass, spin-dependent (SD) and spin-independent (SI) scattering cross section off nucleons. A convenient choice of target materials, including nuclei that couple to dark matter particles through a significantly different ratio of SD vs SI interactions, could break the degeneracies in the determination of those parameters that a single experiment cannot discriminate. In this work we investigate different targets that can be used as scintillating bolometers and could provide complementary information to germanium and xenon detectors. We observe that Al sub(2)O sub(3) and LiF bolometers could allow a good reconstruction of the DM properties over regions of the parameter space with a SD scattering cross section as small as 10 super(-5) pb and a SI cross section as small as 5 x 10 super(-10) pb for a 50GeV WIMP. In the case of a CaWO sub(4) bolometer the area in which full complementarity is obtained is smaller but we show that it can be used to determine the WIMP mass and its SI cross section. For each target we study the required exposure and background.
ISSN:1475-7516
1475-7516
DOI:10.1088/1475-7516/2013/07/028