Strangelets in cosmic rays

Cosmic ray strangelets

Searching for strangelets in cosmic rays may be the best way to test the possible stability of strange quark matter. I review calculations of the astrophysical strangelet flux in the GV–TV rigidity range, which will be investigated from the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station, and discuss the merits of strangelets as ultra-high energy cosmic rays at EeV–ZeV e...

N ov 2 00 1 Color - flavor locking in strange stars , strangelets , and cosmic rays

Detailed analysis of observed antiprotons in cosmic rays

In the present work, the origin of antiprotons observed in cosmic rays (above the atmosphere) is analyzed in details. We have considered the origin of the primaries, (which their interactions with the interstellar medium is one of the most important sources of antiprotons) is a supernova type II then used a diffusion model for their propagation. We have used the latest parameterization for anti...

Can cosmic strangelets reach the earth?

The mechanism for the propagation of strangelets with low baryon number through the atmosphere of the Earth has been explored. It has been shown that, under suitable initial conditions, such strangelets may indeed reach depths near mountain altitudes with mass numbers and charges close to the observed values in cosmic ray experiments.

Cosmic-ray strangelets in the Earth’s atmosphere

If strange quark matter is stable in small lumps, we expect to find such lumps, called “strangelets”, on Earth due to a steady flux in cosmic rays. Based on recent model predictions for this flux, we find that strangelets corresponding to gaseous elements (noble gases, N, and O) accumulate in the atmosphere at high concentration. Metallic and semimetallic strangelets accumulate in suprisingly h...