# Chiral Partners in a Chirally Broken World

@article{Leupold2008ChiralPI, title={Chiral Partners in a Chirally Broken World}, author={Stefan Leupold and Marc Wagner}, journal={arXiv: Nuclear Theory}, year={2008} }

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…

## 4 Citations

Phenomenology of axial-vector and pseudovector mesons: decays and mixing in the kaonic sector

- Physics
- 2013

We study the decays of the lightest axial-vector and pseudovector mesons, interpreted as quark-antiquark states, into a vector and a pseudoscalar meson. We show that the quarkonium assignment…

How the axial anomaly controls flavor mixing among mesons

- Physics
- 2018

It is well known that because of the axial anomaly in QCD, mesons with $J^P = 0^-$ are close to $SU(3)_{\mathrm{V}}$ eigenstates: the $eta^\prime(958)$ meson is largely a singlet, and the $\eta$…

Different nature of ρ and a 1

- 2009

Within the very same framework using lowest-order chiral interactions and optionally s-channel resonances it is shown that the ρ meson can be understood as a preformed (quark-antiquark) state — with…

f2(1270), a1(1260) and f0(1370) as dynamically reconstructed quark-antiquark states

- Physics
- 2010

It is explained why the interpretation of the resonances f2(1270), a1(1260) and f0(1370) as quark-antiquark states is legitimate. The result of the quark model and of recently performed…

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