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Abstract <p>The <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(K^{+}\to A_{2\pi}\pi^{0}e^{+}\nu\)</EquationSource> <!--NuclPhys2560247Karkaryan-m3--> </InlineEquation> process with subsequent <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(A_{2\pi}\to\pi^{0}\pi^{0}\)</EquationSource> <!--NuclPhys2560247Karkaryan-m4--> </InlineEquation> decay is considered. We estimate the branching ratio of the <InlineEquation ID="IEq5"> <EquationSource Format="TEX">\(K^{+}\to A_{2\pi}\pi^{0}e^{+}\nu\)</EquationSource> <!--NuclPhys2560247Karkaryan-m5--> </InlineEquation> to <InlineEquation ID="IEq6"> <EquationSource Format="TEX">\(K^{+}\to\pi^{0}\pi^{0}\pi^{0}e^{+}\nu\)</EquationSource> <!--NuclPhys2560247Karkaryan-m6--> </InlineEquation> by means of the phase volume analysis. Other possible intermediate resonances are discussed.</p>

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Pionium Intermediate State in \({K^{+}\to\pi^{0}\pi^{0}\pi^{0}e^{+}\nu}\) Decay

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • E. K. Karkaryan

摘要

Abstract

The \(K^{+}\to A_{2\pi}\pi^{0}e^{+}\nu\) process with subsequent \(A_{2\pi}\to\pi^{0}\pi^{0}\) decay is considered. We estimate the branching ratio of the \(K^{+}\to A_{2\pi}\pi^{0}e^{+}\nu\) to \(K^{+}\to\pi^{0}\pi^{0}\pi^{0}e^{+}\nu\) by means of the phase volume analysis. Other possible intermediate resonances are discussed.