Measurement of $K^{+}\to {\pi }^0{\pi }^0{e}^{+}\nu$ ($K_{e4}^{00}$) decay using stopped positive kaons

Abstract

The $K^{+}\to {\pi }^0{\pi }^0{e}^{+}\nu$ ($K_{e4}^{00}$) decay has been measured with stopped positive kaons for a data sample of 216 events. A comparison of the observed spectra with a Monte Carlo simulation determined the $K_{e4}^{00}$ form factor. The results are compatible with the $K^{+}\to {\pi }^{+}{\pi }^{-}{e}^{+}\nu$ data, as estimated from the $\Delta I=1/2$ rule. We also established that the $K_{e4}^{00}$ channel can be used to determine the $\pi$-$\pi$ scattering lengths.

arXiv commentabout 10 pages, 3figures

References in corpus (8)

• A new measurement of K+(e4) decay and the s-wave pi-pi-scattering length a00
• The quark condensate from K_{e_4} decays
• $K_{\ell 4}$ Form-Factors and $\pi$-$\pi$ Scattering
• Apparatus for a Search for T-violating Muon Polarization in Stopped-Kaon Decays
• A Parametrization for $K^{+}\to {\pi }^{+}{\pi }^{-}{e}^{+}\nu$
• Measurement of $\Gamma (K_{\mu 3})/\Gamma (K_{e3})$ ratio using stopped positive kaons
• Measurement of direct photon emission in $K^{+}\to {\pi }^{+}{\pi }^0\gamma$ decay using stopped positive kaons
• Test of exotic scalar and tensor interactions in K_e3 decay using stopped positive kaons

Cited by in corpus (4)

• Kaon Decays in the Standard Model
• The weighted random graph model
• Measurement of K^+ \to π^0 μ^+ νγdecay using stopped kaons
• New determination of the branching ratio of the structure dependent radiative $K^{+}\to e^{+}{\nu }_e\gamma$ decay