In:
The European Physical Journal C, Springer Science and Business Media LLC, Vol. 84, No. 4 ( 2024-04-02)
Abstract:
The $$K^{+} \rightarrow \pi ^{+}\pi ^{0}\pi ^{0}\gamma $$ K + → π + π 0 π 0 γ decay is observed by the OKA collaboration. About 60 events of the decay observed with signal:noise $$\approx 1$$ ≈ 1 . The branching ratio obtained by normalization to $$K^{+} \rightarrow \pi ^{+}\pi ^{0}\pi ^{0}$$ K + → π + π 0 π 0 is measured to be $$(3.7 \pm 0.9(stat) \pm 0.3(syst))\times 10^{-6}$$ ( 3.7 ± 0.9 ( s t a t ) ± 0.3 ( s y s t ) ) × 10 - 6 for $$E_{\gamma }^* 〉 10\,\textrm{MeV}$$ E γ ∗ 〉 10 MeV . The branching ratio, $$\gamma $$ γ energy spectrum and angular distribution are consistent with ChPT prediction.
Type of Medium:
Online Resource
ISSN:
1434-6052
DOI:
10.1140/epjc/s10052-024-12674-0
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2024
detail.hit.zdb_id:
1397769-6
detail.hit.zdb_id:
1459069-4
Permalink