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New results from NA48 on rare neutral $K$-decays
New results by the NA48 collaboration on rare neutral K decay are reported. $K_L \to \pi^0\gamma\gamma$ and $K_{LS} \to \pi^+\pi^-e^+e^-$ decays are reviewd. A preliminary B.R. of $(1.51 \pm 0.05(sta) \pi$ 0.20(sys) $10^6$ and an evidence of events with $m_{\gamma\gamma}$ < 240 MeV are given for...
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| Lenguaje: | eng |
| Publicado: |
The Gioi
2001
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| Acceso en línea: | http://cds.cern.ch/record/2296645 |