Calculate the energy threshold (E ) for the photon conversion into e + e - pair
Question:
Calculate the energy threshold (Eγ) for the photon conversion into e+e- pair in the electric field of (1) an oxygen nucleus, (2) an electron and (3) for the post production of a μ+μ- pair in the field of a proton. In any case the photon, which has mass equal to zero converts in a pair of mass mee > 0. In which on figuration is mee a minimum? Consider in particular electron energies E+, E– >> me.
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1 The reaction is 16 Oe e 16 O The CM energy squared is s E m O 2 p 2 ...View the full answer
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Related Book For 
Introduction to Elementary Particle Physics
ISBN: 978-1107050402
2nd edition
Authors: Alessandro Bettini
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