Investigation on light dark matter
R. Bernabei (1,2), P. Belli (2), F. Cappella (3,4), R. Cerulli (5),, C.J. Dai (6), H.L. He (6), A. Incicchitti (4), H.H. Kuang (6), J.M. Ma (6),, X.H. Ma (6), F. Montecchia (1,2), F. Nozzoli (1,2), D. Prosperi (3,4), X.D., Sheng (6), Z.P. Ye (6,7), R.G. Wang (6)
TL;DR
This paper explores the potential for direct detection of light dark matter particles, focusing on inelastic scattering processes and analyzing phenomenological parameters based on experimental data.
Contribution
It develops theoretical arguments and discusses phenomenological aspects for detecting sub-GeV dark matter candidates through inelastic scattering.
Findings
Allowed parameter regions derived from DAMA/NaI data
Theoretical framework for inelastic scattering detection
Phenomenological analysis of light dark matter scenarios
Abstract
Some extensions of the Standard Model provide Dark Matter candidate particles with sub-GeV mass. These Light Dark Matter particles have been considered for example in Warm Dark Matter scenarios (e.g. the keV scale sterile neutrino, axino or gravitino). Moreover MeV scale DM candidates have been proposed in supersymmetric models and as source of the 511 keV line from the Galactic center. In this paper the possibility of direct detection of a Light Dark Matter candidate is investigated considering the inelastic scattering processes on the electron or on the nucleus targets. Some theoretical arguments are developed and related phenomenological aspects are discussed. Allowed volumes and regions for the characteristic phenomenological parameters of the considered scenarios are derived from the DAMA/NaI annual modulation data.
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