Light hybrid baryons in QCD sum rules

Abstract

We have calculated the mass spectra of nucleon and delta hybrid baryons with both positive-parity and negative-parity by using the method of QCD sum rules. We predicte that the lowest-lying hybrid baryons are the negative-parity $N_{1/2^{-}}$ and $\hat{I}{”}_{1/2^{-}}$ states, while the positive-parity ones are much heavier. We suggest to search for these light hybrid baryons via the $\ddot{I}{‡}_{cJ}/\hat{I}\yen$ decay processes in the future.

6 pages, 1 figure. Presentation at HADRON2025 Conference: The 21st International Conference on Hadron Spectroscopy and Structure, held at Osaka University, Osaka, Japan, in Mar. 27-31, 2025