Estimate the thickness of iron through which a b 200 GeV must travel if 1 in 10° of them is to i energies the neutrino-nucleon total cross-section the neutrino energy is in GeV. The density of ir

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Estimate the thickness of iron through which a beam of neutrinos with energy
200 GeV must travel if 1 in 10⁹ of them is to interact. Assume that at high
energies the neutrino-nucleon total cross-section is 10-42 E, m², where E, is
the neutrino energy is in GeV. The density of iron is 7,900 kg m-³. [Mass of
nucleon = 1.67 × 10-27 kg.]
Transcribed Image Text:Estimate the thickness of iron through which a beam of neutrinos with energy 200 GeV must travel if 1 in 10⁹ of them is to interact. Assume that at high energies the neutrino-nucleon total cross-section is 10-42 E, m², where E, is the neutrino energy is in GeV. The density of iron is 7,900 kg m-³. [Mass of nucleon = 1.67 × 10-27 kg.]
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