# Nuclear bound state of eta'(958) and partial restoration of chiral symmetry in the eta' mass

@article{Jido2012NuclearBS, title={Nuclear bound state of eta'(958) and partial restoration of chiral symmetry in the eta' mass}, author={Daisuke Jido and Hideko Nagahiro and Satoru Hirenzaki}, journal={Physical Review C}, year={2012}, volume={85}, pages={032201} }

The in-medium mass of the $\eta^{\prime}$ meson is discussed in a context of partial restoration of chiral symmetry in nuclear medium. The $\eta^{\prime}$ mass is expected to be reduced by order of 100 MeV at the saturation density. The reduction is a consequence of the suppression of the anomaly effect on the $\eta^{\prime}$ mass induced by partial restoration of chiral symmetry. This strong attraction in $\eta^{\prime}$ nuclear systems does not accompany large absorption of $\eta^{\prime…

## 38 Citations

Structure of $\eta^{\prime}$ mesonic nuclei in a relativistic mean field theory

- PhysicsProgress of Theoretical and Experimental Physics
- 2019

The structure and the energy spectrum of the $\eta^{\prime}$ mesonic nuclei are investigated in a relativistic mean field theory. One expects a substantial attraction for the $\eta^{\prime}$ meson in…

Eta-prime bound states in nuclei and partial restoration of chiral symmetry

- Physics
- 2011

We discuss the in-medium mass of the eta-prime meson under partial restoration of chiral symmetry. The chiral SU(3)\otimes SU(3) symmetry tells us the flavor singlet pseudoscalar meson eta-prime…

Formation of $\eta{^\prime}$(958) meson bound states by the 6Li($\gamma$,d) reaction

- Physics
- 2016

Abstract.We have investigated the 6Li($ \gamma$,d) reaction theoretically for the formation of the $\eta^{\prime}(958)$ mesic nucleus close to the recoilless kinematics. We have developed the…

Mesons in Nuclei and Partial Restoration of Chiral Symmetry

- Physics
- 2016

Recent topics on mesons in nuclei are discussed by especially emphasizing the role of the partial restoration of chiral symmetry in the nuclear medium. The spontaneously broken chiral symmetry in…

Missing-mass spectroscopy of the ${}^{12}{\rm C}(p,d)$ reaction near the $\eta^\prime$-meson production threshold

- Physics
- 2017

Excitation-energy spectra of $^{11}$C nuclei near the $\eta^\prime$-meson production threshold have been measured by missing-mass spectroscopy using the $^{12}$C($p$,$d$) reaction. A carbon target…

Possible $\eta' d$ bound state and its $s$-channel formation in the $\gamma d \to \eta d$ reaction

- Physics
- 2018

We theoretically investigate a possibility of an $\eta ^{\prime} d$ bound state and its formation in the $\gamma d \to \eta d$ reaction. First, in the fixed center approximation to the Faddeev…

Effects of chain decays, radial flow and UA(1) restoration on the low-mass dilepton enhancement in $$\sqrt {s_{NN} } = 200$$ GeV Au+Au reactions

- Physics
- 2013

In $$\sqrt {s_{NN} } = 200$$ GeV Au+Au collisions PHENIX reported a significant enhancement in the low-mass region (0.1 < mee < 0.7 GeV) of the dielectron spectrum, which is still not fully…

Formation of η'(958) Bound States in Nuclei

- Physics
- 2014

Recently, important developments have been reported in theoretical [1-3] and experimental [4] point of view for the study of the η′ mass and the η′-nucleus systems. Theoretically, it has been pointed…

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