The electromagnetic effects in $K_{e4}$ decay

Abstract

The final state interaction of pions in $K_{e4}$ decay allows one to obtain the value of the isospin and angular momentum zero $\pi \pi$ scattering length $a_0^0$.We take into account the electromagnetic interaction of pions and isospin symmetry breaking effects caused by different masses of neutral and charged pions and estimate the impact of these effects on the procedure of scattering length extraction from $K_{e4}$ decay.

8 pages,1 figure

References in corpus (7)

• Cusps in K --> 3 pi decays
• Pion-pion scattering and the K->3pi decay amplitudes
• Isospin breaking in Kl4 decays
• Electromagnetic corrections to final state interactions in $K\to 3\pi$ decays
• Theoretical progress on cusp effect and Kl4 decays
• Theoretical progress on pi pi scattering lengths and phases
• The isospin symmetry breaking effects in $K_{e4}$ decays

Cited by in corpus (2)

• Isospin breaking in Kl4 decays
• Final state interaction in kaons decays