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74309d7132 Along the axis, most particles can be found in a kind of disk only a few meters thick and moving almost at the speed of light. Actual numbers are subject to large fluctuations. After some point, the shower maximum, more particles are stopped than created and the number of shower particles declines. Application Error. Therefore, some of the pions may collide with yet another nucleus of the air before decaying, which would be into a muon and a neutrino. Some suggestions: Go back to the last page Go to the home page .. When many thousand (sometimes millions or even billions) of particles arrive at ground level, perhaps on a mountain, this is called an extensive air shower (EAS). The fragments of the incoming nucleus also interact again, also producing new particles. Interactions and particle production. Neutral pions very quickly decay, usually into two gamma-rays.
In fact, from most cosmic rays nothing comes down at all. When a primary cosmic ray produces many secondary particles, we call this an air shower. Cookies are required to use this site. 403 Forbidden . Cosmic rays. 403 Forbidden . Cookies are required to use this site.