TL;DR
This paper reviews various dark matter candidates, discusses recent antimatter cosmic ray results related to dark matter, and emphasizes the need for new measurements to explore this potential new physics field.
Contribution
It provides a comprehensive overview of dark matter candidates and analyzes recent cosmic ray data suggesting dark matter's possible role, highlighting future research directions.
Findings
Antimatter cosmic ray results may indicate dark matter presence.
Problems and solutions related to dark matter explanations are discussed.
New measurements are crucial for confirming dark matter's role in cosmic phenomena.
Abstract
An overview is given of various dark matter candidates. Among the many suggestions given in the literature, axions, inert Higgs doublet, sterile neutrinos, supersymmetric particles and Kaluza-Klein particles are discussed. The situation has recently become very interesting with new results on antimatter in the cosmic rays having dark matter as one of the leading possible explanations. Problems of this explanation and possible solutions are discussed, and the importance of new measurements is emphasized. If the explanation is indeed dark matter, a whole new field of physics, with unusual although not impossible mass and interaction properties may soon open itself to discovery.
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