Construction of the pion scalar form factor from few poles and zero
Construction and analysis of the pion scalar-isoscalar form factor in the elastic region is presented. Precise S-wave ππ scattering phase shifts generated by dispersive analysis of experimental data with imposed crossing symmetry condition are used. Final result for values of the f0(500) meson mass...
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EDP Sciences
2016-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/201613007009 |
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doaj-0f8ca410509d48c2b2c44c20fb34ff3c2021-08-02T18:30:35ZengEDP SciencesEPJ Web of Conferences2100-014X2016-01-011300700910.1051/epjconf/201613007009epjconf_meson2016_07009Construction of the pion scalar form factor from few poles and zeroKamiński Robert0Dubnicka Stanislav1Dubnickova Zuzana2Liptaj Andrej3Institute of Nuclear Physics PASInstitute of Physics SASDepartment of Theoretical Physics, Comenius UniversityInstitute of Physics SASConstruction and analysis of the pion scalar-isoscalar form factor in the elastic region is presented. Precise S-wave ππ scattering phase shifts generated by dispersive analysis of experimental data with imposed crossing symmetry condition are used. Final result for values of the f0(500) meson mass and width, mσ = (487 ± 31) MeV; Γσ = (542 ± 60) MeV is compatible with the results from dispersive analyses of the Bern and Madrid-Kraków groups to be considered now as the most reliable values of the f0(500) scalar meson parameters. Parameters of the f0(980), although lying almost on the KK̄ threshold also agree with values predicted by these two groups.http://dx.doi.org/10.1051/epjconf/201613007009 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Kamiński Robert Dubnicka Stanislav Dubnickova Zuzana Liptaj Andrej |
| spellingShingle |
Kamiński Robert Dubnicka Stanislav Dubnickova Zuzana Liptaj Andrej Construction of the pion scalar form factor from few poles and zero EPJ Web of Conferences |
| author_facet |
Kamiński Robert Dubnicka Stanislav Dubnickova Zuzana Liptaj Andrej |
| author_sort |
Kamiński Robert |
| title |
Construction of the pion scalar form factor from few poles and zero |
| title_short |
Construction of the pion scalar form factor from few poles and zero |
| title_full |
Construction of the pion scalar form factor from few poles and zero |
| title_fullStr |
Construction of the pion scalar form factor from few poles and zero |
| title_full_unstemmed |
Construction of the pion scalar form factor from few poles and zero |
| title_sort |
construction of the pion scalar form factor from few poles and zero |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2016-01-01 |
| description |
Construction and analysis of the pion scalar-isoscalar form factor in the elastic region is presented. Precise S-wave ππ scattering phase shifts generated by dispersive analysis of experimental data with imposed crossing symmetry condition are used. Final result for values of the f0(500) meson mass and width, mσ = (487 ± 31) MeV; Γσ = (542 ± 60) MeV is compatible with the results from dispersive analyses of the Bern and Madrid-Kraków groups to be considered now as the most reliable values of the f0(500) scalar meson parameters. Parameters of the f0(980), although lying almost on the KK̄ threshold also agree with values predicted by these two groups. |
| url |
http://dx.doi.org/10.1051/epjconf/201613007009 |
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AT kaminskirobert constructionofthepionscalarformfactorfromfewpolesandzero AT dubnickastanislav constructionofthepionscalarformfactorfromfewpolesandzero AT dubnickovazuzana constructionofthepionscalarformfactorfromfewpolesandzero AT liptajandrej constructionofthepionscalarformfactorfromfewpolesandzero |
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