Spectrum of positive and negative parity pentaquarks, including $SU(3)_F$ breaking
M. Abud, F. Buccella, D. Falcone, G. Ricciardi, F. Tramontano
TL;DR
This paper predicts the spectrum of lightest positive and negative parity pentaquarks considering chromo-magnetic interactions and $SU(3)_F$ breaking, aligning well with experimental data.
Contribution
It provides a detailed theoretical spectrum of pentaquarks including $SU(3)_F$ breaking effects, which was not comprehensively done before.
Findings
Spectrum matches experimental observations
Chromo-magnetic interaction explains mass splittings
$SU(3)_F$ breaking effects are significant
Abstract
We present the spectrum of the lightest pentaquark states of both parities and compare it with the present experimental evidence for these states. We have assumed that the main role for their mass splittings is played by the chromo-magnetic interaction. We have also kept into account the breaking for their contribution and for the spin orbit term. The resulting pattern is in good agreement with experiment.
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.
Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies · Black Holes and Theoretical Physics