Published February 1, 2010 | Version v1
Journal article

Global interpretation of direct Dark Matter searches after CDMS-II results

  • 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/10.1088/1475-7516/2010/02/014

Additional details

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