K_L to \pi^+ \pi^- e^+ e
Phys.Rev.D52:5095,1995; Erratum-ibid.D53:2855,1996; Phys.Rev.D53:2855,1996 We calculate all of the form factors for the one-photon, $K_L \rightarrow \pi^+ \pi^- \gamma^* \rightarrow \pi^+ \pi^- e^+e^-$ contribution to the $K_L \rightarrow \pi^+ \pi^- e^+e^-$ decay amplitude at leading order in chira...
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Zusammenfassung: | Phys.Rev.D52:5095,1995; Erratum-ibid.D53:2855,1996;
Phys.Rev.D53:2855,1996 We calculate all of the form factors for the one-photon, $K_L \rightarrow
\pi^+ \pi^- \gamma^* \rightarrow \pi^+ \pi^- e^+e^-$ contribution to the $K_L
\rightarrow \pi^+ \pi^- e^+e^-$ decay amplitude at leading order in chiral
perturbation theory. These form factors depend on one unknown constant that is
a linear combination of coefficients of local ${\cal O}(p^4)$ operators in the
chiral lagrangian for weak radiative kaon decay. We determine the differential
rate for $\K$ and also the magnitude of two CP violating observables. |
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DOI: | 10.48550/arxiv.hep-ph/9504288 |