Lattice QCD at the SU(3) symmetric point extracts energy levels for singlet and octet baryon-meson channels to inform the two-pole structure of Lambda(1405).
Isolating the \Lambda(1405) in Lattice QCD
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
The negative-parity ground state of the \Lambda{} baryon lies surprisingly low in mass. At 1405.1 MeV, it lies lower than the negative-parity ground state nucleon, even though it has a valence strange quark. Using the PACS-CS (2+1)-flavour full-QCD ensembles available through the ILDG, we employ a variational analysis using source and sink smearing to isolate this elusive state. We find three low-lying odd-parity states, and for the first time reproduce the correct level ordering with respect to the nearby scattering thresholds.
fields
hep-lat 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
citing papers explorer
-
The Lambda 1405 at the $SU(3)$ point in lattice QCD
Lattice QCD at the SU(3) symmetric point extracts energy levels for singlet and octet baryon-meson channels to inform the two-pole structure of Lambda(1405).