English

The electromagnetic effects in $K_{e4}$ decay

High Energy Physics - Phenomenology 2011-04-07 v3

Abstract

The final state interaction of pions in Ke4K_{e4} decay allows one to obtain the value of the isospin and angular momentum zero ππ\pi\pi scattering length a00a_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 Ke4K_{e4} decay.

Cite

@article{arxiv.0711.4618,
  title  = {The electromagnetic effects in $K_{e4}$ decay},
  author = {S. R. Gevorkyan and A. N. Sissakian and A. V. Tarasov and H. T. Torosyan and O. O. Voskresenskaya},
  journal= {arXiv preprint arXiv:0711.4618},
  year   = {2011}
}

Comments

8 pages,1 figure

R2 v1 2026-06-21T09:48:27.308Z