DAMA/NaI

The DAMA/NaI experiment[1][2] investigated the presence of dark matter particles in the galactic halo by exploiting the model-independent annual modulation signature. Based on the Earth's orbit around the Sun and the solar system's speed with respect to the center of the galaxy (which on short time scales can be considered constant), the Earth should be exposed to a higher flux of dark matter particles around June 1,[3] when its orbital speed is added to the one of the solar system with respect to the galaxy and to a smaller one around December 2, when the two velocities are subtracted. The annual modulation signature is distinctive since the effect induced by dark matter particles must simultaneously satisfy many requirements.

  1. ^ Bernabei, R.; et al. (2003). "Dark Matter search". Rivista del Nuovo Cimento. 26 (1): 1–73. arXiv:astro-ph/0307403. Bibcode:2003NCimR..26a...1B. doi:10.1007/BF03548916.
  2. ^ Bernabei, R.; et al. (1999). "Performances of the about 100 kg NaI(Tl) set-up of the DAMA experiment at Gran Sasso". Il Nuovo Cimento A. 112 (6): 545–575. Bibcode:1999NCimA.112..545B. doi:10.1007/BF03035868. S2CID 119819887.
  3. ^ Savage, C.; et al. (2009). "Compatibility of DAMA/LIBRA dark matter detection with other searches". Journal of Cosmology and Astroparticle Physics. 2009 (4): 010. arXiv:0808.3607. Bibcode:2009JCAP...04..010S. doi:10.1088/1475-7516/2009/04/010. S2CID 119211397.