6533b854fe1ef96bd12af38f
RESEARCH PRODUCT
Extending the DAMA annual-modulation region by inclusion of the uncertainties in astrophysical velocities
Fiorenza DonatoStefano ScopelNicolao FornengoA. BottinoP. BelliD. ProsperiR. Bernabeisubject
Nuclear and High Energy PhysicsParticle physicsDAMA/LIBRACold dark matterDark matterFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysicsSettore FIS/04 - Fisica Nucleare e SubnucleareGalactic haloHigh Energy Physics - Phenomenology (hep-ph)DARK-MATTERSUPERSYMMETRYLight dark matterPhysicsDARK-MATTER; Dark matter annual modulation signature; SUPERSYMMETRY; SIGNAL;Settore FIS/01 - Fisica SperimentaleAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsSIGNALDark matter haloHigh Energy Physics - PhenomenologyDark matter annual modulation signatureWeakly interacting massive particlesDAMA/NaIdescription
The original annual-modulation region, singled out by the DAMA/NaI experiment for direct detection of WIMPs, is extended by taking into account the uncertainties in the galactic astrophysical velocities. Also the effect due to a possible bulk rotation for the dark matter halo is considered. We find that the range for the WIMP mass becomes 30 GeV < m_chi < 130 GeV at 1-sigma C.L. with a further extension in the upper bound, when a possible bulk rotation of the dark matter halo is taken into account. We show that the DAMA results, when interpreted in the framework of the Minimal Supersymmetric extension of the Standard Model, are consistent with a relic neutralino as a dominant component of cold dark matter (on the average in our universe and in our galactic halo). It is also discussed the discovery potential for the relevant supersymmetric configurations at accelerators of present generation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-03-26 |