Abstract
We present and analyze a new set of Ward Identities which shed light on the distinction between different patterns of chiral symmetry restoration in QCD, namely vs . The degeneracy of chiral partners for all scalar and pseudoscalar meson nonet members is studied through their corresponding correlators. Around chiral symmetry degeneration of partners, our analysis predicts that partners are also degenerated. Our analysis also leads to scalar-pseudoscalar partner degeneration at exact chiral restoration and supports ideal mixing between the and the mesons at restoration, with a possible range where the pseudoscalar mixing vanishes if the two transitions are well separated. We test our results with lattice data and provide further relevant observables regarding chiral and restoration for future lattice and model analyses.
- Received 23 January 2018
DOI:https://doi.org/10.1103/PhysRevD.97.074016
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society