首次 $\pi K$ 原子寿命与 $\pi K$ 散射长度测量
核实验
2015-06-19 v1 高能物理 - 实验
摘要
本文展示了寻找由 介子组成的类氢原子的结果。通过来自 CERN PS 的 24 GeV/c 质子与镍靶相互作用，从原子在同一靶内破裂产生的特征 对（）以及来自 Coulomb 末态相互作用（）的证据中，观察到了 原子产生的迹象。利用这些结果，分析首次给出了 原子寿命值 fs，以及首次与模型无关的 S 波同位旋奇数 散射长度测量值 （ 对应同位旋 ）。
引用
@article{arxiv.1403.0845,
title = {First $\pi K$ atom lifetime and $\pi K$ scattering length measurements},
author = {B. Adeva and L. Afanasyev and Y. Allkofer and C. Amsler and A. Anania and S. Aogaki and A. Benelli and V. Brekhovskikh and T. Cechak and M. Chiba and P. Chliapnikov and C. Ciocarlan and S. Constantinescu and P. Doskarova and D. Drijard and A. Dudarev and M. Duma and D. Dumitriu and D. Fluerasu and A. Gorin and O. Gorchakov and K. Gritsay and C. Guaraldo and M. Gugiu and M. Hansroul and Z. Hons and S. Horikawa and Y. Iwashita and V. Karpukhin and J. Kluson and M. Kobayashi and V. Kruglov and L. Kruglova and A. Kulikov and E. Kulish and A. Kuptsov and A. Lamberto and A. Lanaro and R. Lednicky and C. Mariñas and J. Martincik and L. Nemenov and M. Nikitin and K. Okada and V. Olchevskii and M. Pentia and A. Penzo and M. Plo and T. Ponta and P. Prusa and G. Rappazzo and A. Romero Vidal and A. Ryazantsev and V. Rykalin and J. Schacher and A. Sidorov and J. Smolik and S. Sugimoto and F. Takeutchi and L. Tauscher and T. Trojek and S. Trusov and T. Urban and T. Vrba and V. Yazkov and Y. Yoshimura and M. Zhabitsky and P. Zrelov},
journal= {arXiv preprint arXiv:1403.0845},
year = {2015}
}
备注
14 pages, 8 figures