Proton penetration efficiency over a high altitude observatory in Mexico
In association with a large solar flare on November 7, 2004, the solar neutron detectors located at Mt.Chacaltaya (5,250 m) Pancake / Crepe Rakes in Bolivia and Mt.Sierra Negra (4,600 m) in Mexico recorded very interesting events.In order to explain these events, we have performed a calculation solving the equation of motion of anti-protons inside