f{sub 0}(600) and f{sub 0}(980) pole positions from a dispersive {pi}{pi} scattering data analysis

Journal Article · Mon May 23 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3575010· OSTI ID:21513301

Ruiz e Elvira, J; Martin, R Garcia; Pelaez, J R ^[1]; Kaminski, R ^[2]

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1. Departamento de Fisica Teorica II, Universidad Complutense de Madrid, 28040 Madrid (Spain)
2. Department of Theoretical Physics, H. Niewodniczanski Insitute of Nuclear Physics, Polish Academy of Sciences, 31-342 Krakow (Poland)

We show how the new precise data on kaon decays together with forward dispersion relations, sum rules and once- and twice-subtracted Roy equations allow for a precise analysis of {pi}{pi} scattering. The once subtracted Roy equations provide a more stringent consistency check for the parametrizations of the S0-wave data in the region from 450 to 1100 MeV that allows us to present a preliminary determination of the f{sub 0}(600) and f{sub 0}(980) poles from the constrained dispersive data analysis.

• OSTI ID: 21513301
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1343; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
DATA ANALYSIS
DECAY
DISPERSION RELATIONS
ELEMENTARY PARTICLES
ENERGY RANGE
EQUATIONS
F0-980 MESONS
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
KAONS
MESON-MESON INTERACTIONS
MESONS
MEV RANGE
MEV RANGE 100-1000
PARTICLE DECAY
PARTICLE INTERACTIONS
PERTURBATION THEORY
PION-PION INTERACTIONS
PSEUDOSCALAR MESONS
SCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
SUM RULES