Soft-core meson-baryon interactions. I. One-hadron-exchange potentials

Polinder, H.; Rijken, Th. A.

doi:10.1103/physrevc.72.065210

Cited by 13 publications

(3 citation statements)

References 38 publications

(51 reference statements)

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“…Apart from their masses they have identical quantum numbers. In particular, this applies to the (I = 1 2 , J P = 1 2 + )-states N and the Roper resonance, i.e. the P 11 -wave.…”

Section: Baryon Mixingmentioning

confidence: 99%

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Soft-core meson-baryon interactions. II.πNandK+Nscattering

Polinder

Rijken

2005

Phys. Rev. C

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The πN potential includes the t-channel exchanges of the scalar-mesons σ and f0, vector-meson ρ, tensor-mesons f2 and f ′ 2 and the Pomeron as well as the s-and u-channel exchanges of the nucleon N and the resonances ∆, Roper and S11. These resonances are not generated dynamically. We consider them as, at least partially, genuine three-quark states and we treat them in the same way as the nucleon. The latter two resonances were needed to find the proper behavior of the phase shifts at higher energies in the corresponding partial waves. The soft-core πN -model gives an excellent fit to the empirical πN S-and P -wave phase shifts up to T lab = 600 MeV. Also the scattering lengths have been reproduced well and the soft-pion theorems for low-energy πN scattering are satisfied. The soft-core model for the K + N interaction is an SU f (3)-extension of the soft-core πN -model. The K + N potential includes the t-channel exchanges of the scalar-mesons a0, σ and f0, vectormesons ρ, ω and ϕ, tensor-mesons a2, f2 and f ′ 2 and the Pomeron as well as u-channel exchanges of the hyperons Λ and Σ. The fit to the empirical K + N S-, P -and D-wave phase shifts up to T lab = 600 MeV is reasonable and certainly reflects the present state of the art. Since the various K + N phase shift analyses are not very consistent, also scattering observables are compared with the soft-core K + N -model. A good agreement for the total and differential cross sections as well as the polarizations is found.

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“…Apart from their masses they have identical quantum numbers. In particular, this applies to the (I = 1 2 , J P = 1 2 + )-states N and the Roper resonance, i.e. the P 11 -wave.…”

Section: Baryon Mixingmentioning

confidence: 99%

“…In the previous paper (paper I) [1] the Nijmegen softcore model for the pseudoscalar-meson baryon interaction in general (NSC model) is derived. In this paper (paper II) we apply the NSC model to the πN and K + N interactions.…”

Section: Introductionmentioning

confidence: 99%

Soft-core meson-baryon interactions. II.πNandK+Nscattering

Polinder

Rijken

2005

Phys. Rev. C

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“…With 20 free parameters (of the masses and coupling constants) there, they reproduced the NN scattering data in the energy range of 0-350 MeV again with χ 2 /N data = 1.15. Some new improvements were because of including the axial-vector mesons and a zero in the scalar meson form factors-It is also mentionable that the SC meson-baryon interactions were discussed in [146] as well. From 2005 onwards, some new generations of the ESC BB potentials (called ESC04) have been presented, where the contributions from OPE's, ORE's, MPE's and two-pseudoscalar-meson-exchange (PS-PS exchange) are also included.…”

Section: Extended Soft-core Potentialsmentioning

confidence: 99%

Nucleon-nucleon interaction: A typical/concise review

Naghdi

2014

Phys. Part. Nuclei

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Nearly a recent century of work is divided to Nucleon-Nucleon (NN) interaction issue. We review some overall perspectives of NN interaction with a brief discussion about deuteron, general structure and symmetries of NN Lagrangian as well as equations of motion and solutions. Meanwhile, the main NN interaction models, as frameworks to build NN potentials, are reviewed concisely. We try to include and study almost all well-known potentials in a similar way, discuss more on various commonly used plain forms for two-nucleon interaction with an emphasis on the phenomenological and meson-exchange potentials as well as the constituent-quark potentials and new ones based on chiral effective field theory and working in coordinate-space mostly. The potentials are constructed in a way that fit NN scattering data, phase shifts, and are also compared in this way usually. An extra goal of this study is to start comparing various potentials forms in a unified manner. So, we also comment on the advantages and disadvantages of the models and potentials partly with reference to some relevant works and probable future studies. * E-Mail: m.naghdi@mail.ilam.ac.ir

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Pion Effects in N and $$\varDelta $$ Masses and Strong Form Factors

Plessas

Schmidt

2020

Recent Progress in Few-Body Physics

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Soft-core meson-baryon interactions. I. One-hadron-exchange potentials

Cited by 13 publications

References 38 publications

Soft-core meson-baryon interactions. II.πNandK+Nscattering

Soft-core meson-baryon interactions. II.πNandK+Nscattering

Nucleon-nucleon interaction: A typical/concise review

Pion Effects in N and $$\varDelta $$ Masses and Strong Form Factors

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