6533b85bfe1ef96bd12bb4a9
RESEARCH PRODUCT
Halo-independent methods for inelastic dark matter scattering
Jure ZupanNassim BozorgniaThomas SchwetzJuan Herrero-garciasubject
AstrofísicaParticle physicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Dark matterFOS: Physical sciencesInelastic scattering01 natural sciencesSignalPartícules (Física nuclear)High Energy Physics - Phenomenology (hep-ph)0103 physical sciences010306 general physicsPhysicsdark matter theory010308 nuclear & particles physicsScatteringdark matter experimentsAstrophysics::Instrumentation and Methods for AstrophysicsAstronomy and AstrophysicsComputational physicsDark matter haloHigh Energy Physics - PhenomenologyAmplitudeModulationHaloAstronomia Aparells i instrumentsAstrophysics - Cosmology and Nongalactic Astrophysicsdescription
We present halo-independent methods to analyze the results of dark matter direct detection experiments assuming inelastic scattering. We focus on the annual modulation signal reported by DAMA/LIBRA and present three different halo-independent tests. First, we compare it to the upper limit on the unmodulated rate from XENON100 using (a) the trivial requirement that the amplitude of the annual modulation has to be smaller than the bound on the unmodulated rate, and (b) a bound on the annual modulation amplitude based on an expansion in the Earth's velocity. The third test uses the special predictions of the signal shape for inelastic scattering and allows for an internal consistency check of the data without referring to any astrophysics. We conclude that a strong conflict between DAMA/LIBRA and XENON100 in the framework of spin-independent inelastic scattering can be established independently of the local properties of the dark matter halo.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-05-15 |