A novel probe of chiral restoration in nuclear medium

Philipp Gubler, Teiji Kunihiro, Su Houng Lee

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7 Citations (Scopus)


We propose measuring the mass shift and width broadening of the f1(1285) meson together with those of the ω 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 f1(1285) current and the ω current is discussed in the limit where the disconnected diagrams are neglected. A QCD sum rule analysis of the f1(1285) meson mass leads to about 100 MeV attraction in nuclear matter, which can be probed in future experiments.

Original languageEnglish
Pages (from-to)336-340
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 2017 Apr 10

Bibliographical note

Funding Information:
The work was supported by the Korea National Research Foundation under the grant number KRF-2011-0030621 and the Korean ministry of education under the grant number 2016R1D1A1B03930089. The authors thank the Yukawa Institute for Theoretical Physics, Kyoto University, where this work was initiated during the YITP-W-16-01 “MIN16 – Meson in Nucleus 2016 –”. T.K. was partially supported by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan (Nos. 16K05350, 15H03663) and by the Yukawa International Program for Quark-Hadron Sciences.

Publisher Copyright:
© 2017 The Authors

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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