Decay of K0 to \({K^ + }{e^ - }{\bar \nu _e}\)

Resumo

The width of the neutral kaon with respect to its decay to a positively charged kaon, an electron, and an antineutrino is calculated. The branching ratios for the decay of K_L and K_S mesons to \({K^ + }{e^ - }{\bar \nu _e}\) are found to be about 4 × 10⁻⁹ and 10⁻¹¹ respectively. The calculations presented in this article are also valid for neutral antikaons decaying to a negatively charged kaon, a positron, and a neutrino.