Muon decay spectrum: Leading logarithmic approximation
Feb, 20028 pages
Published in:
- Phys.Rev.D 65 (2002) 113006
e-Print:
- hep-ph/0202102 [hep-ph]
Report number:
- ALBERTA-THY-01-02
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Abstract:
O(alpha^2 ln^2(m_mu/m_e)) QED corrections to the electron spectrum and angular distribution in muon decay are evaluated. Impact on the determination of Michel parameters is estimated. Current theoretical uncertainty in the muon decay distributions is discussed.- 12.38.Bx
- 12.20.Ds
- 13.35.Bv
- 14.60.Ef
- muon+: leptonic decay
- muon+: width
- positron: energy spectrum
- positron: angular distribution
- leading logarithm approximation
- Michel parameter
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