# Measurement of the quadratic slope parameter in the $K_{L} \rightarrow 3\pi^{0}$ decay Dalitz plot

Abstract : A value of $$(-6.1\pm 0.9_{stat}\pm 0.5_{syst})\times 10^{-3}$$ is obtained for the quadratic slope parameter $$h$$ in the $$K_{L}\rightarrow 3\pi ^{0}$$ decay Dalitz plot at the NA48 experiment at the CERN SPS. The result is based on $$14.7\times 10^{6}$$ fully reconstructed $$K_{L}\rightarrow 3\pi ^{0}\rightarrow 6\gamma$$ decays. This is the most precise measurement of any of the Dalitz plot slope parameters in the charged and neutral kaon decays so far.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00013567
Contributor : Hélène Kerec <>
Submitted on : Thursday, February 27, 2003 - 10:51:51 AM
Last modification on : Saturday, January 2, 2021 - 11:26:02 PM

### Identifiers

• HAL Id : in2p3-00013567, version 1

### Citation

A. Lai, D. Marras, L. Musa, A. Bevan, R S. Dosanjh, et al.. Measurement of the quadratic slope parameter in the $K_{L} \rightarrow 3\pi^{0}$ decay Dalitz plot. Physics Letters B, Elsevier, 2001, 515, pp.261-268. ⟨in2p3-00013567⟩

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