Baryon Resonances in a Constituent Quark Model

Masaki, Atsushi; Masutani, Keiichi; Satô, Tôru

doi:10.1143/ptps.137.169

Cited by 4 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Baryon resonances are outstanding features in elastic and inelastic meson-baryon scattering and signal the onset of non-perturbative physics. Constituent quark model approaches describe them as excited baryonic bound states, and the coupling to the continuum is obtained by evaluating transition matrix elements [1] but comparison with data can only be done once the scattering problem is solved. In such a scheme, the underlying quark constituent nature of hadrons is taken into account but implementation of Chiral Symmetry (CS) becomes difficult.…”

Section: Introductionmentioning

confidence: 99%

The S01 − Λ(1405) and − Λ(1670) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

et al. 2003

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

The S01 − Λ(1405) and − Λ(1670) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

et al. 2003

View full text Add to dashboard Cite

“…In the quark model baryon resonances are naturally interpreted as bound state composites of three valence quarks, and their widths are computed as matrix elements of hadronic transition operators between the bound and continuum states [3]. This approach corresponds to the picture of unstable particles weakly coupled to a continuum.…”

Section: Introductionmentioning

confidence: 99%

Meson-Baryon Interactions in Unitarized Chiral Perturbation Theory

Garcı́a-Recio¹,

Nieves²,

Arriola

et al. 2003

AIP Conference Proceedings

View full text Add to dashboard Cite

Meson-Baryon Interactions can be successfully described using both Chiral Symmetry and Unitarity. The $s-$wave meson-baryon scattering amplitude is analyzed in a Bethe-Salpeter coupled channel formalism incorporating Chiral Symmetry in the potential. Two body coupled channel unitarity is exactly preserved. The needed two particle irreducible matrix amplitude is taken from lowest order Chiral Perturbation Theory in a relativistic formalism. Off-shell behavior is parameterized in terms of low energy constants. The relation to the heavy baryon limit is discussed. The position of the complex poles in the second Riemann sheet of the scattering amplitude determine masses and widths baryonic resonances of the N(1535), N(1670), $\Lambda (1405)$ and $\Lambda(1670)$ resonances which compare well with accepted numbers.Comment: 14 pages, 3 figures; Talk at 2nd International Workshop On Hadron Physics: Effective Theories Of Low-Energy QCD, Coimbra, Portugal, 25-29 Sep 2002. (To appear in the proceedings.) Presented by E. Ruiz Arriol

show abstract

Two-pion exchange contribution to proton-proton scattering at medium energies

Gibbs

Loiseau

2008

Phys. Rev. C

View full text Add to dashboard Cite

Baryon Resonances in a Constituent Quark Model

Cited by 4 publications

References 37 publications

The S01 − Λ(1405) and − Λ(1670) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

The S01 − Λ(1405) and − Λ(1670) resonances in meson-baryon unitarized coupled channel chiral perturbation theory

Meson-Baryon Interactions in Unitarized Chiral Perturbation Theory

Two-pion exchange contribution to proton-proton scattering at medium energies

Contact Info

Product

Resources

About