Angular Distribution of Electrons in Bound Muon Decay
نویسندگان
چکیده
منابع مشابه
Wrong-Helicity Electrons in Radiative Muon Decay
We have studied in detail the spectrum of the decay μ− → e−ν̄eνμγ as a function of the electron helicity, and verify the prediction [1] that a significant fraction of the electrons in this decay is righthanded. These “wrong-helicity” electrons persist in the limit λ = me/mμ → 0, and are connected with helicity-flip bremsstrahlung in QED. The longitudinal polarization of the electron is calculate...
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Electrons emitted in the radiative decay μ− → e−ν̄eνμγ have a significant probability of being right-handed, even in the limit me → 0. Such “wrong-helicity” electrons, arising from helicity-flip bremsstrahlung, contribute an amount α 4π Γ0 to the muon decay width (Γ0 ≡ G 2 Fm 5 μ/(192π )). We use the helicity-flip splitting function Dhf (z) of Falk and Sehgal (Phys. Lett. B 325, 509 (1994)) to o...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1987
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.78.114