The ABC effect and chiral-bag-model form factors

G. Kälbermann; J. M. Eisenberg

doi:10.1016/0375-9474(84)90166-0

The ABC effect and chiral-bag-model form factors

G. Kälbermann^*, J. M. Eisenberg

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We investigate the ABC effect in the reaction n+p → d+(ππ)⁰ using the chiral lagrangian of Weinberg in the tree approximation. Chiral-bag-model form factors are used for the vertices. We obtain cross sections as a function of energy for deuteron scattering angles θ_d = 0° and 10.5°. The results are compared with the latest experimental measurements. The fit to the absolute value of the cross section is obtained taking the bag radius R as a free parameter; the fitted value of R turns out to be that expected in the light of previous studies in the framework of chiral bag models. The ABC effect is almost completely accounted for in terms of the lowest-order diagrams.

Original language	English
Pages (from-to)	599-605
Number of pages	7
Journal	Nuclear Physics A
Volume	426
Issue number	3
DOIs	https://doi.org/10.1016/0375-9474(84)90166-0
State	Published - 24 Sep 1984
Externally published	Yes

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title = "The ABC effect and chiral-bag-model form factors",

abstract = "We investigate the ABC effect in the reaction n+p → d+(ππ)0 using the chiral lagrangian of Weinberg in the tree approximation. Chiral-bag-model form factors are used for the vertices. We obtain cross sections as a function of energy for deuteron scattering angles θd = 0° and 10.5°. The results are compared with the latest experimental measurements. The fit to the absolute value of the cross section is obtained taking the bag radius R as a free parameter; the fitted value of R turns out to be that expected in the light of previous studies in the framework of chiral bag models. The ABC effect is almost completely accounted for in terms of the lowest-order diagrams.",

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AU - Kälbermann, G.

AU - Eisenberg, J. M.

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N2 - We investigate the ABC effect in the reaction n+p → d+(ππ)0 using the chiral lagrangian of Weinberg in the tree approximation. Chiral-bag-model form factors are used for the vertices. We obtain cross sections as a function of energy for deuteron scattering angles θd = 0° and 10.5°. The results are compared with the latest experimental measurements. The fit to the absolute value of the cross section is obtained taking the bag radius R as a free parameter; the fitted value of R turns out to be that expected in the light of previous studies in the framework of chiral bag models. The ABC effect is almost completely accounted for in terms of the lowest-order diagrams.

AB - We investigate the ABC effect in the reaction n+p → d+(ππ)0 using the chiral lagrangian of Weinberg in the tree approximation. Chiral-bag-model form factors are used for the vertices. We obtain cross sections as a function of energy for deuteron scattering angles θd = 0° and 10.5°. The results are compared with the latest experimental measurements. The fit to the absolute value of the cross section is obtained taking the bag radius R as a free parameter; the fitted value of R turns out to be that expected in the light of previous studies in the framework of chiral bag models. The ABC effect is almost completely accounted for in terms of the lowest-order diagrams.

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The ABC effect and chiral-bag-model form factors

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