TY  - JOUR
AU  - Herrero-Garcia, J.
AU  - Schwetz, T.
AU  - Zupan, J.
PY  - 2012
DA  - 2012//
TI  - On the annual modulation signal in dark matter direct detection
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology and Astroparticle Physics
SP  - 005
EP  - 28pp
VL  - 03
IS  - 3
PB  - Iop Publishing Ltd
KW  - dark matter theory
KW  - dark matter experiments
KW  - dark matter detectors
AB  - We derive constraints on the annual modulation signal in Dark Matter (DM) direct detection experiments in terms of the unmodulated event rate. A general bound independent of the details of the DM distribution follows from the assumption that the motion of the earth around the sun is the only source of time variation. The bound is valid for a very general class of particle physics models and also holds in the presence of an unknown unmodulated background. More stringent bounds are obtained, if modest assumptions on symmetry properties of the DM halo are adopted. We illustrate the bounds by applying them to the annual modulation signals reported by the DAMA and CoGeNT experiments in the framework of spin-independent elastic scattering. While the DAMA signal satisfies our bounds, severe restrictions on the DM mass can be set for CoGeNT.
SN  - 1475-7516
UR  - http://arxiv.org/abs/1112.1627
UR  - https://doi.org/10.1088/1475-7516/2012/03/005
DO  - 10.1088/1475-7516/2012/03/005
LA  - English
N1  - WOS:000302949600005
ID  - Herrero-Garcia_etal2012
ER  -