Erratum:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>π</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>N</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi>η</mml:mi><mml:mi>N</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>η</mml:mi><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>N</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml

Batinić, M.; Šlaus, I.; Švarc, Alfred; Nefkens, B. M. K.

doi:10.1103/physrevc.57.1004

Cited by 75 publications

(149 citation statements)

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“…TABLES [1] 0.25+i0.16 [2] 0.27+i0.22 pn → dη [3] ≤0.3 [4] 0.46(9)+i0.18(3) [5] 0.487 +i0.171 -6.060-i0.177 [6] 0.51+i0.21 [7] 0.55(20)+i0.30 [5] 0.577 +i0.216 -2.807 -i0.057 [8] 0.621(40)+i0.306(34) [9] 0.68+i0.24 [10] 0.717(30)+i0.263(25) Coupled K-matrices [11] 0.75(4)+i0.27(3) -1.50(13) -i0.24(4) ηd → ηd [12] ≥0.75 Coupled K-matrices [13] 0.87+i0.27 [14] 0.91(3)+i0.29(4) [15] 0.980+i0.37 [16] 0.991 +i0.347 -2.081 -i0.81 Coupled K-matrices [13] 1.05+i0.27…”

Section: Appendixmentioning

confidence: 99%

Erratum: η-nucleon scattering length and effective range uncertainties [Phys. Rev. C 71, 014001 (2005)]

Green¹,

Wycech²

2005

Phys. Rev. C

181

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The coupled ηN , πN , γN , ππN system is described by a K-matrix method. The parameters in this model are adjusted to get an optimal fit to πN → πN , πN → ηN , γN → πN and γN → ηN data in an energy range of about 100 MeV or so each side of the η-threshold. Compared with our earlier analysis, we now utilize recent Crystal Ball data. However, the outcome confirms our previous result that the η-nucleon scattering length (a) is large with a value of 0.91(6)+i0.27(2) fm.PACS numbers: 13.75.-n, 25.80.-e, 25.40.V

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Section: Appendixmentioning

confidence: 99%

Erratum: η-nucleon scattering length and effective range uncertainties [Phys. Rev. C 71, 014001 (2005)]

Green¹,

Wycech²

2005

Phys. Rev. C

181

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“…An attempt to include the two pion production reaction can be found in Ref. [8], but the treatment of the ππN channel is effective and it is represented by a unphysical two body channel which represents all remaining processes.…”

Section: Introductionmentioning

confidence: 99%

S11−N(1535)and−N(1650)resonances

2001

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The s−wave meson-baryon scattering is analyzed for the strangeness S = 0 sector in a Bethe-Salpeter coupled channel formalism incorporating Chiral Symmetry. Four channels have been considered: πN , ηN , KΛ, KΣ. The needed two particle irreducible matrix amplitude is taken from lowest order Chiral Perturbation Theory in a relativistic formalism and low energy constants are fitted to the elastic πN phase-shifts and the π − p → ηn and π − p → K 0 Λ cross section data. The position of the complex poles in the second Riemann sheet of the scattering amplitude determine masses and widths of the S 11 − N (1535) and −N (1650) resonances, in reasonable agreement with experiment. A good overall description of data, from πN threshold up to 2 GeV, is achieved keeping in mind that the two pion production channel has not been included.

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“…At present the resonance properties are extracted mainly from πN scattering, 2π and η production and pion photoproduction using different approaches (for details see Refs. [7][8][9][10]). The first coupled channel analysis that combines pion and eta data was done in Ref.…”

Section: Introductionmentioning

confidence: 99%

Excitation of S11 resonances in pion scattering and pion photoproduction on the proton

et al. 2003

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p E 0 + multipole. The S 11 channel is of interest for several reasons. First of all, the first resonance S 11 (1535), which lies only 48 MeV above the ηN threshold, has a remarkably large ηN branching ratio. This necessitates the inclusion of the ηN channel into our MEX πN model. Secondly, the analyses based solely on pion photoproduction always underestimate the A p 1/2 helicity amplitude of S 11 (1535) with a value around 60 × 10 −3 GeV −1/2 , while extractions

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Erratum:πN→ηNandηN→

Cited by 75 publications

References 0 publications

Erratum: η-nucleon scattering length and effective range uncertainties [Phys. Rev. C 71, 014001 (2005)]

Erratum: η-nucleon scattering length and effective range uncertainties [Phys. Rev. C 71, 014001 (2005)]

S11−N(1535)and−N(1650)resonances

Excitation of S11 resonances in pion scattering and pion photoproduction on the proton

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