Global interpretation of direct Dark Matter searches after CDMS-II results
Creators
- 1. Theoretical Physics Department, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL60510 (United States)
- 2. Max-Planck-Institute for Nuclear Physics, P.O. Box 103980, 69029 Heidelberg (Germany)
- 3. Faculty of mathematics and physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana (Slovenia)
Description
We perform a global fit to data from Dark Matter (DM) direct detection experiments, including the recent CDMS-II results. We discuss possible interpretations of the DAMA annual modulation signal in terms of spin-independent and spin-dependent DM-nucleus interactions, both for elastic and inelastic scattering. We find that for the spin-dependent inelastic scattering off protons a good fit to all data is obtained. We present a simple toy model realizing such a scenario. In all the remaining cases the DAMA allowed regions are disfavored by other experiments or suffer from severe fine tuning of DM parameters with respect to the galactic escape velocity. Finally, we also entertain the possibility that the two events observed in CDMS-II are an actual signal of elastic DM scattering, and we compare the resulting CDMS-II allowed regions to the exclusion limits from other experiments
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2010/02/014Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2010
- Journal Issue
- 02
- Journal Page Range
- p. 014
- ISSN
- 1475-7516
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45094213
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ASTROPHYSICS; COMPARATIVE EVALUATIONS; COSMOLOGY; ELASTIC SCATTERING; INELASTIC SCATTERING; MODULATION; NONLUMINOUS MATTER; PROTONS; SPIN; VELOCITY
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; ELEMENTARY PARTICLES; EVALUATION; FERMIONS; HADRONS; MATTER; NUCLEONS; PARTICLE PROPERTIES; PHYSICS; SCATTERING