O(α^2 \ln(m_μ/m_e)) Corrections to Electron Energy Spectrum in Muon Decay

Abstract

O(α^2 \ln(m_μ/m_e)) corrections to electron energy spectrum in muon decay are computed using perturbative fragmentation function approach. The magnitude of these corrections is comparable to anticipated precision of the TWIST experiment at TRIUMF where Michel parameters will be extracted from the measurement of the electron energy spectrum in muon decay.

8 pages, LaTeX, revtex4.cls, 1 PostScript figure

References in corpus (4)

• Soft-Gluon Resummation for the Fragmentation of Light and Heavy Quarks at Large x
• Bottom Quark Fragmentation in Top Quark Decay
• Muon Decay Spectrum: Leading Logarithmic Approximation
• First Order Radiative Corrections to Polarized Muon Decay Spectrum

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