| Published Articles | |
| Title | Observation of $\pi^- K^+$ and $\pi^+ K^-$ atoms |
| Author(s) | Yazkov, Valeriy (SINP, Moscow) |
| Collaboration | DIRAC |
| Publication | 2018 |
| Number of pages | 10 |
| In: | EPJ Web Conf. 181 (2018) 01036 |
| In: | International Conference on Exotic Atoms and Related Topics (EXA 2017), Vienna, Austria, 11 - 15 Sep 2017, pp.01036 |
| DOI | 10.1051/epjconf/201818101036 |
| Subject category | Nuclear Physics - Experiment |
| Accelerator/Facility, Experiment | CERN PS ; DIRAC PS212 |
| Abstract | Experiment DIRAC at CERN PS detects 349 ± 62 pairs from $\pi^-K^+$ and $\pi^+K^-$ atoms and makes observation of exotic atoms consist of pion and kaon. It allows to measure a difference of S-wave pion-kaon scattering length with isospin 1/2 and 3/2: $|a{_0^{1/2}}−a{_0^{3/2}}|$. Values of pion-kaon scattering lengths are predicted in a frame of ChPT and LQCD. Therefore investigation of $\pi^-K^+$ and $\pi^+K^-$ atoms gives possibility to check these predictions for simplest hadronhadron system with s-quark. |
| Copyright/License | CC-BY-4.0 |
Corresponding record in: Inspire
Záznam vytvorený 2019-07-18, zmenený 2021-06-23