Measurement of the Dalitz plot slope parameters for K- -> pi0 pi0 pi- decay using ISTRA+ detector
High Energy Physics - Experiment
2008-11-26 v2 High Energy Physics - Phenomenology
Abstract
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.
Cite
@article{arxiv.hep-ex/0205027,
title = {Measurement of the Dalitz plot slope parameters for K- -> pi0 pi0 pi- decay using ISTRA+ detector},
author = {I. V. Ajinenko and S. A. Akimenko and G. I. Britvich and K. V. Datsko and A. P. Filin and A. V. Inyakin and A. S. Konstantinov and V. F. Konstantinov and I. Y. Korolkov and V. M. Leontiev and V. P. Novikov and V. F. Obraztsov and V. A. Polyakov and V. I. Romanovsky and V. I. Shelikhov and N. E. Smirnov and O. G. Tchikilev and V. A. Uvarov and O. P. Yushchenko and V. N. Bolotov and S. V. Laptev and A. R. Pastsjak and A. Yu. Polyarush and R. Kh. Sirodeev},
journal= {arXiv preprint arXiv:hep-ex/0205027},
year = {2008}
}
Comments
LaTeX, 10 pages, 8 eps-figures, update of IHEP 2002-16