The production of & electrons can be described by the Bethe-Bloch formula. For a good approximation for the probability of electron production is: (E)dE- K- 1 z x dE B2 A E2 where = 0.154 MeV / (g/cm2), Z, A are the atomic and mass numbers for the target, x is the thickness of the absorbent in units of g/cm2. Find the probability that a 10 GeV muon will produce an electron & with an Eo energy greater than 10 MeV in a 1 cm argon layer (gas under standard conditions of temperature and pressure). We will consider for argon Z = 18, A = 40 and the gas density p = 1.782 10-3 [g / cm].