| Issue |
EPJ Web Conf.
Volume 130, 2016
MESON 2016 – 14th International Workshop on Meson Production, Properties and Interaction
|
|
|---|---|---|
| Article Number | 07009 | |
| Number of page(s) | 4 | |
| Section | 07 Other topics - contributions | |
| DOI | https://doi.org/10.1051/epjconf/201613007009 | |
| Published online | 29 November 2016 | |
https://doi.org/10.1051/epjconf/201613007009
Construction of the pion scalar form factor from few poles and zero
1 Institute of Nuclear Physics PAS, Kraków, Poland
2 Institute of Physics SAS, Bratislava, Slovak Republic
3 Department of Theoretical Physics, Comenius University, Bratislava, Slovak Republic
* e-mail: robert.kaminski@ifj.edu.pl
Published online: 29 November 2016
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.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.