Chiral Symmetry Breaking without Bilinear Condensates, Unbroken Axial ZN Symmetry, and Exact QCD Inequalities
Ian I. Kogan, Alex Kovner, M. A. Shifman
Abstract
An alternative pattern of the chiral symmetry breaking, suggested recently by Stern, is investigated. It could be self-consistent provided that the chiral SU(Nf) × SU(Nf) symmetry is broken spontaneously down to SU(Nf) × ZNf rather than to SU(Nf)V. The discrete axial ZNf then would play a custodial role preventing the quark bilinears from condensation. It is shown that this pattern of the chiral symmetry breaking is ruled out in QCD by exact inequalities. It is not ruled out, however, in other gauge theories with scalar quarks and/or Yukawa couplings.
Create a lesson
Related papers
Comment on "Long-range magnetic fields in the ground state of the Standard Model plasma"
Jingwei Wang, Yiming Liu, Ligong Bian
Semiparametric Estimation of Physics Parameters and Parton Distribution Functions
Huanbiao Zhu, Jaco ter Hoeve, Mikael Kuusela et al.
Observable gravitational waves from unstable ALP catastrogenesis
Graciela B. Gelmini, Jonah Hyman, Yu Watanabe
Revisiting the gamma-ray signal from light ALPs emitted during the evaporation of memory-burdened PBHs
Cheng-Rui Jiang, Tong Li
Holographic spin alignment of vector mesons in a spinning black-hole background
Fei Wang, Zi-qiang Zhang
Modeling a Framework for Comprehensive Analysis of p\!A Transverse Analyzing Power Measurements at the RHIC HJET
Andrei Poblaguev