Spectroscopy of ${\eta }^{\prime }$-nucleus bound states at GSI and FAIR --- very preliminary results and future prospects ---

Abstract

The possible existence of η'-nucleus bound states has been put forward through theoretical and experimental studies. It is strongly related to the η' mass at finite density, which is expected to be reduced because of the interplay between the $U_A(1)$ anomaly and partial restoration of chiral symmetry. The investigation of the C(p,d) reaction at GSI and FAIR, as well as an overview of the experimental program at GSI and future plans at FAIR are discussed.

7 pages, 3 figures; talk at the International Conference on Exotic Atoms and Related Topics (EXA2014), Vienna, Austria, 15-19 September 2014. in Hyperfine Interactions (2015)

References in corpus (5)

• η- and η'-mesic nuclei and U_A(1) anomaly at finite density
• Determination of the η'-nucleus optical potential
• Formation of eta-prime(958)-mesic nuclei by (p,d) reaction
• Determination of the eta'-proton scattering length in free space
• Progress in development of silica aerogel for particle- and nuclear-physics experiments at J-PARC

Cited by in corpus (7)

• Momentum distribution of N${}^{\ast }$ in nuclei
• Upper limits for the production of the eta-mesic Helium in the dd ->3Henpi0 and dd -> 3Heppi- reactions
• Status and Perspectives of the Search for Eta-Mesic Nuclei
• Study of in-medium ${\eta }^{\prime }$ properties in the ($\gamma$, ${\eta }^{\prime }p$) reaction on nuclei
• Revisiting ${\eta }^{\prime }(958)$ nuclear states
• The ${\eta }^{\prime }N$ interaction from the ${\eta }^{\prime }p$ correlation function
• Feasibility of the observation of ${\eta }^{\prime }$ mesic nuclei in the semi-exclusive ${}^{12}$C($p,dp$) reaction