5 decays

In this subsection we discuss the decays

and their charge conjugate modes. The letter l stands for e or . We do not consider isospin violating contributions and correspondingly set , .

• 5.1 Kinematics
• 5.2 Matrix elements
• 5.3 Decay rates
• 5.4 Isospin decomposition
• 5.5 Partial wave expansion
• 5.6 Previous experiments
• 5.7 Theory
• 5.8 Determination of and
• 5.9 Predictions
• 5.10 Improvements at DANE