Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-11-28
Astronomy and Astrophysics
Astrophysics
5 pages; 4 pictures; International Europhysics Conference on High Energy Physics, 12-18 July, 2001, Budapest, Hungary; accepte
Scientific paper
The whole set of astrophysical data indicates that our Universe is globally baryon asymmetrical. Nevertheless a possibility of existence of relatively small amount of sufficiently large antimatter regions is not excluded. Such regions can survive the annihilation with surrounding matter only in the case if their sizes exceed a certain scale. It is shown that quantum fluctuations of a complex scalar field caused by inflation can generate large antimatter domains progenitors, which contribute insignificantly to the total volume of the Universe. The resulting distribution and evolution of such antimatter regions could cause every galaxy to be a harbour of an anti--star globular cluster. The existence of one of such anti -- star globular cluster in our Galaxy, does not contradict the observed $\gamma$ -- ray background, but the expected fluxes of $\bar{^4He}$ and $\bar{^3He}$ from such an antimatter object can be searched for in PAMELA experiment and are definitely accessible for the sensitivity of coming AMS02 experiment.
Khlopov Maxim
Rubin Sergei
Sakharov Alexander
No associations
LandOfFree
Antimatter as a probe for physical processes in the early Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Antimatter as a probe for physical processes in the early Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antimatter as a probe for physical processes in the early Universe will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-117477