Pith. sign in

REVIEW 6 cited by

Hyperon II: Properties of excited hyperons

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1907.13387 v1 pith:A7U5GP2U submitted 2019-07-31 nucl-ex

classification nucl-ex
keywords lambdaresonancessigmafinalhyperonstateshyperonsproperties
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We report properties of $\Lambda$ and $\Sigma$ hyperon resonances formed in $K^-$ induced reactions. Special emphasis is laid on the analysis of the three-body final states $2\pi^0\Lambda$ and $2\pi^0\Sigma$ and of the quasi-two-body final states $\pi\Lambda(1520)$, $\bar K\Delta(1232)$, $\pi\Sigma(1385)$, $\bar K^*N$, and $\omega\Lambda$. We give pole positions of $\Lambda$ and $\Sigma$ hyperon resonances and transition residues from the $K^-p$ initial to various final states as well as Breit-Wigner masses and widths and decay branching ratios. Twenty resonances and "bumps" reported in the Review of Particle Physics are not required in our fits, evidence for five new resonances is reported. The observed mass spectrum is compared to the spectrum calculated in the Bonn quark model. Three spin doublets, six $\Lambda$ hyperons, are tentatively assigned to the SU(3) singlet system.

Discussion (0). Sign in to comment.

Forward citations

Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Low-lying $\Lambda$ and $\Sigma$ resonances studied with the forward $K^*$ productions off the proton induced by a high-momentum $\pi$ beam

    hep-ph 2026-05 unverdicted novelty 7.0 of 10

    A model combining one-meson exchange with ANL-Osaka DCC amplitudes predicts observables for pi N to K* MB to examine sub-threshold Lambda and Sigma resonances and their overlaps.

  2. Hyperon non-leptonic decays in relativistic Chiral Perturbation Theory with resonances

    hep-ph 2026-04 unverdicted novelty 7.0 of 10

    Relativistic ChPT at NLO with resonance saturation yields a good combined fit to hyperon non-leptonic s- and p-wave decay amplitudes.

  3. Low-lying $\Lambda$ and $\Sigma$ resonances studied with the forward $K^*$ productions off the proton induced by a high-momentum $\pi$ beam

    hep-ph 2026-05 conditional novelty 6.0 of 10

    Forward pion-induced K-star production can turn a possible new 3/2+ Sigma resonance plus the known Sigma(1385) into one peak in the pion-lambda mass spectrum, with angular distributions separating the two.

  4. Extraction of $\sigma_{TT}$ for Proton, Neutron, Deuteron and $^3$He from Quasi-real Photon Scattering

    hep-ex 2026-07 conditional novelty 5.0 of 10

    Quasi-real electroproduction data extrapolated to Q²=0 give σ_TT for p, n, d and ³He, with larger neutron/deuteron Δ(1232) strength than real-photon data and better isospin consistency.

  5. Experimental Advances on Light Baryon Spectroscopy at BESIII Experiment

    hep-ex 2026-03 unverdicted novelty 5.0 of 10

    BESIII reports discoveries of multiple new excited light baryon states from high-statistics data, expanding the known spectrum and supporting non-perturbative QCD studies.

  6. Experimental Advances on Light Baryon Spectroscopy at BESIII Experiment

    hep-ex 2026-03 unverdicted novelty 4.0 of 10

    BESIII reports discoveries of new excited nucleon, Lambda, Sigma, Xi, and Omega hyperon states from high-statistics electron-positron collision data.

Pith tools