International Conference on Exotic Atoms and Related Topics - EXA2014

We have been working on a spectroscopy experiment searching for eta'-nucleus bound states at GSI. The binding of an eta' meson may arise from an attractive etaprime-nucleus interaction which leads to a mass reduction at finite density, as a result of partial restoration of chiral symmetry in association with the U_A(1) anomaly. The first experiment, GSI S-437, will take place in July and August, 2014. We will make use of the 12C(p,d) reaction; the ejectile deuterons will be momentum-analyzed by the fragment separator (FRS). Furthermore, we will upgrade the experimental setup at Super-FRS in the FAIR era, so as to improve the sensitivity. In this contribution, very preliminary results of the analysis of brand-new data will be reported. In addition, we will discuss future plans towards FAIR experiments.