Published 2016 | Version v1
Journal article Metadata-only

Construction of the pion scalar form factor from few poles and zero

Creators

  • 1. Institute of Nuclear Physics PAS, Krakow (Poland)
  • 2. Institute of Physics SAS, Bratislava (Slovakia)
  • 3. Department of Theoretical Physics, Comenius University, Bratislava (Slovakia)

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-Krakow 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.

Availability note (English)

Available from http://www.epj-conferences.org/articles/epjconf/pdf/2016/25/epjconf_meson2016_07009.pdf; https://doaj.org/article/0f8ca410509d48c2b2c44c20fb34ff3c; http://dx.doi.org/10.1051/epjconf/201613007009

Additional details

Identifiers

URL
http://www.epj-conferences.org/articles/epjconf/pdf/2016/25/epjconf_meson2016_07009.pdf; https://doaj.org/article/0f8ca410509d48c2b2c44c20fb34ff3c;
DOI
10.1051/epjconf/201613007009;

Publishing Information

Journal Title
EPJ. Web of Conferences
Journal Volume
130
Journal Page Range
07009 p.
ISSN
2100-014X

Conference

Title
14. International Workshop on Meson Production, Properties and Interaction
Acronym
MESON 2016
Dates
2-7 Jun 2016
Place
Krakow (Poland)

INIS

Country of Publication
France
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48032482
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CROSSING SYMMETRY; F0-980 MESONS; FORM FACTORS; MEV RANGE 10-100; PARTICLE WIDTHS; PHASE SHIFT; PION-PION INTERACTIONS; PIONS; REST MASS; S WAVES; SCATTERING
Descriptors DEC
BOSONS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ENERGY RANGE; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; MASS; MESON-MESON INTERACTIONS; MESONS; MEV RANGE; PARTIAL WAVES; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; SCALAR MESONS; SYMMETRY

Optional Information

Copyright
Copyright (c) 2016 The Authors. Published by EDP Sciences