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Investigating pseudoscalar and scalar dark matter

R. Bernabei·P. Belli·F. Montecchia·F. Nozzoli·F. Cappella·A. Incicchitti·D. Prosperi·R. Cerulli·C. J. Dai·H. L. He·H. H. Kuang·J. M. Ma·Z. P. Ye
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Abstract

In this paper another class of Dark Matter candidate particles: the pseudoscalar and scalar light bosonic candidates, is discussed. Particular care is devoted to the study of the processes for their detection (which only involves electrons and photons/X-rays) in a suitable underground experimental set-up. For this purpose the needed calculations are developed and various related aspects and phenomenologies are discussed. In particular, it is shown that - in addition to the WIMP cases already discussed elsewhere - there is also possibility for a bosonic candidate to account for the 6.3 sigma C.L. model independent evidence for the presence of a particle DM component in the galactic halo observed by DAMA/NaI. Allowed regions in these scenarios are presented also paying particular care on the cosmological interest of the bosonic candidate.

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R. Bernabei, P. Belli, F. Montecchia, F. Nozzoli, F. Cappella, A. Incicchitti, D. Prosperi, R. Cerulli, C. J. Dai, H. L. He, H. H. Kuang, J. M. Ma, Z. P. Ye. 2005-11-09. Investigating pseudoscalar and scalar dark matter. https://doi.org/10.1142/s0217751x06030874

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