Propagation of strangelets in the Earth's atmosphere
  A new model for the description of the behaviour of strangelets in the Earth's atmosphere is presented. Strangelet fission induced by collision with air nuclei is included. It is shown that strangelets with certain parameters of initial mass and energy may reach depths near sea level, which can be examined by ground-based experiments. 
Fei Wu (PKU), Ren-Xin Xu (PKU), Bo-Qiang Ma (PKU)