High statistics study of the K- -> pi0 e- nu decay
High Energy Physics - Experiment
2008-11-26 v1
Abstract
The decay K- -> pi0 e- nu has been studied using in-flight decays detected with the "ISTRA+" spectrometer working at the 25 GeV negative secondary beam of the U-70 PS. About 550K events were used for the analysis. The lambda+ parameter of the vector form-factor has been measured: lambda+ = 0.0286 +- 0.0008 (stat) +- 0.0006(syst). The limits on the possible tensor and scalar couplings have been obtained: f(T)/f+(0)=0.021 +0.064 -0.075 (stat) +- 0.026(syst) ; f(S)/f+(0)=0.002 +0.020 -0.022 (stat) +- 0.003(syst)
Cite
@article{arxiv.hep-ex/0309019,
title = {High statistics study of the K- -> pi0 e- nu decay},
author = {I. V. Ajinenko and S. A. Akimenko and K. S. Belous and G. I. Britvich and I. G. 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. A. Khmelnikov and V. M. Leontiev and V. P. Novikov and V. F. Obraztsov and V. A. Polyakov and V. I. Romanovsky and V. M. Ronjin and V. I. Shelikhov and N. E. Smirnov and A. A. Sokolov 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/0309019},
year = {2008}
}
Comments
LaTeX-2e, epsfig.sty, 10 pages, 7 figures in EPS format