Antimatter in the Universe

Details Antimatter in the Universe Antimatter in the Universe

2002-07-20

arxiv.org/abs/astro-ph/0207441v1

Astronomy and Astrophysics

Astrophysics

18 pages, 2 figures; invited talks presented at Rencontres of La Thuile, 2002 and at SpacePart 2002, to be oublished in the Pr

Scientific paper

10.1016/S0920-5632(02)01821-2

Different scenarios of baryogenesis are briefly reviewed from the point of view of possibility of generation of cosmologically interesting amount of antimatter. It is argued that creation of antimatter is possible and natural in many models. In some models not only anti-helium may be produced but also a heavier anti-elements and future observations of the latter would be critical for discovery or establishing stronger upper limits on existence of antimatter. Incidentally a recent observation of iron-rich quasar may present a support to one special model of antimatter creation.

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