Measurement of the Dalitz plot slope parameters for K- -> pi0 pi0 pi- decay using ISTRA+ detector

Measurement of the Dalitz plot slope parameters for K- -> pi0 pi0 pi- decay using ISTRA+ detector

Phys.Lett.B567:159-166,2003 The Dalitz plot slope parameters g, h and k for the K- -> pi0 pi0 pi- decay have been measured using in-flight decays detected with the ISTRA+ setup operating in the 25 GeV negative secondary beam of the U-70 PS. About 252 K events with four-momenta measured for the pi...

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Hauptverfasser: Ajinenko, I. V, Akimenko, S. A, Britvich, G. I, Datsko, K. V, Filin, A. P, Inyakin, A. V, Konstantinov, A. S, Konstantinov, V. F, Korolkov, I. Y, Leontiev, V. M, Novikov, V. P, Obraztsov, V. F, Polyakov, V. A, Romanovsky, V. I, Shelikhov, V. I, Smirnov, N. E, Tchikilev, O. G, Uvarov, V. A, Yushchenko, O. P, Bolotov, V. N, Laptev, S. V, Pastsjak, A. R, Polyarush, A. Yu, Sirodeev, R. Kh
Format: Artikel
Sprache:eng
Schlagworte:
Physics - High Energy Physics - Experiment
Physics - High Energy Physics - Phenomenology
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Zusammenfassung:Phys.Lett.B567:159-166,2003 The Dalitz plot slope parameters g, h and k for the K- -> pi0 pi0 pi- decay have been measured using in-flight decays detected with the ISTRA+ setup operating in the 25 GeV negative secondary beam of the U-70 PS. About 252 K events with four-momenta measured for the pi- and four involved photons were used for the analysis. The values obtained g=0.627+/-0.004(stat)+/-0.010(syst), h=0.046+/-0.004(stat)+/-0.012(syst), k=0.001+/-0.001(stat)+/-0.002(syst) are consistent with the world averages dominated by K+ data, but have significantly smaller errors.
DOI:10.48550/arxiv.hep-ex/0205027