A novel probe of chiral restoration in nuclear medium

Abstract

We propose measuring the mass shift and width broadening of the $f_1(1285)$ meson together with those of the $\omega$ from a nuclear target as a means to experimentally probe the partial restoration of chiral symmetry inside the nuclear matter. The relation between the order parameter of chiral symmetry and the difference in the correlation functions of the $f_1(1285)$ current and the $\omega$ current is discussed in the limit where the disconnected diagrams are neglected. A QCD sum rule analysis of the $f_1(1285)$ meson mass leads to about 100 MeV attraction in nuclear matter, which can be probed in future experiments.

4 pages, 3 figures, version to be published in Phys. Lett. B

References in corpus (5)

• Parton distributions for the LHC
• Big-Bang Nucleosynthesis
• Restoration of chiral and $U(1{)}_A$ symmetries in excited hadrons
• In-medium Pion and Partial Restoration of Chiral Symmetry
• Chiral and U_A(1) symmetry in correlation functions in medium

Cited by in corpus (7)

• The masses of hadrons in the chiral symmetry restored vacuum
• $\varphi$ meson properties in nuclear matter from QCD sum rules with chirally separated four-quark condensates
• Axial anomaly effect to the chiral-partner structure of diquarks at high temperature
• Measurement of f${}_1$(1285) production in pp collisions at $\sqrt{\text{s}}$ = 13 TeV
• Fate of ${\Sigma }_c$, ${\Xi }_c^{\prime }$ and ${\Omega }_c$ baryons at high temperature with chiral restoration
• $K_1^{\pm }$ mesons moving in nuclear matter
• Chiral Symmetry and hadron properties at finite temperature -A numerical experiment