Article

The electromagnetic effects in Ke4 decay

Physics of Atomic Nuclei (Impact Factor: 0.51). 06/2010; 73(6):937-940. DOI: 10.1134/S1063778810060049
Source: arXiv

ABSTRACT

The final-state interaction of pions in K

e4 decay allows to obtain the value of the isospin and angular-momentum-zero ππ scattering length a
00.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 decays.

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