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Critique of a Pion Exchange Model for Interquark Forces

Nathan Isgur
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Abstract

I describe four serious defects of a widely discussed pion exchange model for interquark forces: it doesn't solve the "spin-orbit problem" as advertised, it fails to describe the internal structure of baryon resonances, it leads to disastrous conclusions when extended to mesons, and it is not reasonably connected to the physics of heavy-light systems.

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Nathan Isgur. 1999-10-07. Critique of a Pion Exchange Model for Interquark Forces. https://doi.org/10.1103/physrevd.62.054026

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