P Wave Baryons in Field Correlator Method: Hyperons

TL;DR

This paper investigates P-wave hyperons using the field correlator method in QCD, deriving a unified description of their spectra based on key QCD parameters and comparing nucleon and hyperon excitations.

Contribution

It applies the field correlator method to P-wave hyperons, providing a unified spectral description and predictions for nucleon and hyperon excitations.

Findings

Hyperon spectrum expressed through string tension, coupling constant, and strange quark mass.

Unified description of ground and excited hyperon states.

Predicted similar excitation energy (~460 MeV) for nucleon and hyperon states.

Abstract

We provide an investigation of the P-wave hyperons employing the field correlator method in QCD. This method allows to derive the Effective Hamiltonian successfully applied to the meson and ground state baryon spectra. The hyperon spectrum appears to be expressed through two parameters relevant to QCD, the string tension \sigma, the strong coupling constant \alpha_s, and the bare strange quark mass m_s. Using these parameters a unified description of the ground and excited hyperon states is achieved. We also briefly consider the nucleon P-wave excitations. In particular, we predict that both the nucleon and hyperon states have the similar cost (in \Delta L) ~460 MeV.