Synchonisation of Resonances with Thresholds
D.V. Bugg (Queen Mary, University of London, UK)
TL;DR
This paper explains how resonances can be attracted to sharp thresholds through interference effects involving confinement and meson exchanges, suggesting a mixing mechanism for resonance formation.
Contribution
It introduces a unified mechanism for resonance-threshold attraction involving threshold cusps and mixing of confined states with meson and baryon exchanges.
Findings
Resonances can be attracted to thresholds via constructive interference.
Threshold cusps play a significant role in resonance behavior.
Resonances are generated by mixing confined states with meson and baryon exchanges.
Abstract
The mechanism by which a resonance may be attracted to a sharp threshold is described with several examples. It involves a threshold cusp interfering constructively with either or both (i) a resonance produced via confinement, (ii) attractive t- and u-channel exchanges. More generally, it is suggested that resonances are eigenstates generated by mixing between confined states and long-range meson and baryon exchanges.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.