Annihilation-in-flight of polarised positrons with polarised electrons as an analyser of the positron polarisation from muon decay

The use of annihilation-in-flight of arbitrarily polarised positrons with arbitrarily polarised electrons as an analyser for the positron polarisation from muon decay is discussed. Analysing powers for the longitudinal and the two transverse positron polarisation components are derived and algorithms for the simulation of polarised muon decay and of annihilation-in-flight are given.

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