Chiral Partners in a Chirally Broken World

  title={Chiral Partners in a Chirally Broken World},
  author={Stefan Leupold and Marc Wagner},
  journal={arXiv: Nuclear Theory},
The isovector--vector and the isovector--axial-vector current are related by a chiral transformation. These currents can be called chiral partners at the fundamental level. In a world where chiral symmetry was not broken, the corresponding current-current correlators would show the same spectral information. In the real world chiral symmetry is spontaneously broken. A prominent peak -- the rho-meson -- shows up in the vector spectrum (measured in (e^+ e^-)-collisions and tau-decays). On the… 

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