AMS  Mission
 
The Big Bang
AMS ---- Search for antimatter and dark matter in the universe
 
AntiMatter 
The Big Bang theory as confirmed by some observations cannot be explained without the presence of the same amount of matter and anti-matter at the initial stage. However, other observations exclude the presence of anti-matter at distances up to 20. The question is therefore: where did anti-matter disappeared? or where is anti-matter located in the Universe? To these questions, AMS will probably give some answers since it aims to detect anti-nuclei such as anti-He or anti-C, with a sensitivity better by an order of 4 than nowadays experimental results.

Dark Matter 

All the numerous observations since a long time ago suggest that 90% of the mass of the Universe is missing or not visible. In addition, the theory of the primordial nucleosynthesis indicates that this missing matter is not an ordinary matter, i.e. non baryonic. Neutralino is the privileged candidate to this non baryonic dark matter. It is a neutral supersymetric particle, the lightest one. It is nevertheless not observed till now. If we suppose that neutralinos populating the galactic halo annihilate into ordinary matter, giving positons and anti-protons, then it will be possible to sign them if we detect cosmic rays.
 
Astrophysics 
Measurement of the amount of different light nuclei, such as Be(10) against Be(9), gives us the knowledge of the Primordial Universe composition and the propagation of the cosmic rays as well as their confinement in our galaxy. AMS will improve greately the world statistics in this case.

 

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