Mesons in Nuclei and Partial Restoration of Chiral Symmetry

Abstract

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 vacuum is considered to be incompletely restored in finite nuclear density systems with moderate reduction of the magnitude of the quark condensate. On the partial restoration of chiral symmetry, the wave function renormalization is important to be taken into account for the Nambu-Goldstone bosons. We also discuss the possible change of the meson properties in the nuclear medium and meson-nucleus systems for the $\bar{K}$, $\eta$, $K^{+}$ and ${\eta }^{\prime }$ mesons.

9 pages, 4 figures. Contribution to the proceedings of The 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015), Sendai, Japan, September 7-12, 2015

References in corpus (13)

• In-medium nuclear interactions of low-energy hadrons
• Effective Kbar N interaction based on chiral SU(3) dynamics
• η- and η'-mesic nuclei and U_A(1) anomaly at finite density
• Kaonic production of Lambda(1405) off deuteron target in chiral dynamics
• In-medium chiral condensate beyond linear density approximation
• In-medium Pion and Partial Restoration of Chiral Symmetry
• Formation of eta-prime(958)-mesic nuclei by (p,d) reaction
• Pseudoscalar neutral mesons in hot and dense matter
• Feasibility Study of Observing eta' Mesic Nuclei with (p,d) Reaction
• Level crossing of particle-hole and mesonic modes in eta mesic nuclei
• Formation of eta-mesic nuclei by (pi,N) reaction and N^*(1535) in medium
• Structure of the $\Lambda (1405)$ and the $K^{-}d\to \pi \Sigma n$ reaction
• The ${\eta }^{\prime }N$ interaction from a chiral effective model and ${\eta }^{\prime }$-$N$ bound state

Cited by in corpus (1)

• $K^{+}$-nucleus elastic scattering revisited from perspective of partial restoration of chiral symmetry