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Pion's mean free path in a lake. exercIse question
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[QUOTE="tasos, post: 5491595, member: 524875"] in pion's system from this results we conclude that is going to decay before it reach the bottom. This 1/7 you say its the problem. But given the average free path in the water ,i think i need to calculate some probability. For example if i had a beam with $$N_0$$ pions, given the average path we no that $$N=N_0 e^{-\frac{t}{\tau}} $$ so we can see how many particles will survive for a given time t. The same equation is for the path $$N=N_0 e^{-\frac{L}{\ell}}$$ [/QUOTE]
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Pion's mean free path in a lake. exercIse question
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