The electromagnetic effects in [K.sub.e4] decay

The final-state interaction of pions in [K.sub.e4] decay allows to obtain the value of the isospin and angular-momentum-zero π π scattering length [a.sup.0.sub.0]. We take into account the electromagnetic interaction of pions and isospin-symmetry-breaking effects caused by different masses of neutra...

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Bibliographic Details
Published in:Physics of atomic nuclei 2010-06, Vol.73 (6), p.937
Main Authors: Gevorkyan, S.R, Sissakian, A.N, Tarasov, A.V, Torosyan, H.T, Voskresenskaya, O.O
Format: Article
Language:English
Subjects:
Electromagnetism
Online Access:Get full text
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Summary:The final-state interaction of pions in [K.sub.e4] decay allows to obtain the value of the isospin and angular-momentum-zero π π scattering length [a.sup.0.sub.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.sub.e4] decays.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778810060049