CP Conserving and Violating Contributions to $K_L\toπ^+π^-ν\barν$

Details CP Conserving and Violating Contributions to $K_L\toπ^+π^-ν\barν$ CP Conserving and Violating Contributions to $K_L\toπ^+π^-ν\barν$

1994-06-15

arxiv.org/abs/hep-ph/9406313v1

Phys.Rev.D50:5744-5750,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages (LaTex), 3 figures (not included), NHCU-HEP-94-04

Scientific paper

10.1103/PhysRevD.50.5744

We study both CP conserving and violating contributions to the decay $K_L\to\pi^+\pi^-\nu\bar{\nu}$. We find that the decay branching ratio is dominated by the CP conserving part. In the standard CKM model, we estimate that for $m_t\sim 174\ GeV$, the branching ratio due to the CP conserving (violating) contributions can be as large as $4.4 \times 10^{-13}$ ($1.0\times 10^{-14}$).

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