Is the Pentaquark the Only Justification for Research on KN Physics ?

TL;DR

This paper advocates for using DA$\Phi$NE--2 at the $\phi$ peak as a valuable source of low-momentum kaons to explore unresolved problems in kaon physics, emphasizing that research should not be limited to pentaquarks.

Contribution

It highlights the potential of DA$\Phi$NE--2 for advancing kaon physics and clarifies that pentaquarks are not the sole justification for such research.

Findings

DA$\Phi$NE--2 provides a clean source of low-momentum kaons.

Several open problems in kaon physics remain unsolved.

Research on kaons offers novel physics opportunities.

Abstract

The talk is intended to motivate the use of DA$\Phi$NE--2 running at the $\phi$ peak as an intense, clean source of low--momentum charged and neutral kaons. It covers a few open problems still unsolved after more than twenty--five years and the physics (some of it still novel) that could be learned only in this way. And, of course, the answer to the above question is {\sl NO}.