Parameters of scalar resonances from the combined analysis of ?? scattering and coupled-channel data

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F12%3A00388456" target="_blank" >RIV/61389005:_____/12:00388456 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1051/epjconf/20123709036" target="_blank" >http://dx.doi.org/10.1051/epjconf/20123709036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/20123709036" target="_blank" >10.1051/epjconf/20123709036</a>

Result language

angličtina

Original language name

Parameters of scalar resonances from the combined analysis of ?? scattering and coupled-channel data

Original language description

Peculiarities of obtaining parameters for broad multichannel resonances from data are discussed analyzing the experimental data on processes ?? ??, , in the scalar channel in a model-independent approach based on analyticity and unitarity and using an uniformization procedure. It is shown that one can obtain a good description of the ?? scattering data from the threshold up to 1.89 GeV with values of resonance parameters cited in the PDG tables as preferred. However, in this case the representation of the ?? background is not satisfactory and the data on the coupled process ?? are not well described, above 1.15 GeV even qualitatively. The combined analysis of the considered coupled processes is needed, which is also carried out satisfactorily. Then both above-indicated deficiencies related to the one-channel analysis are removed. The most important change concerns parameters of the f0(600) which are now in some accordance with the prediction by Weinberg on the basis of mended symmetry.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BE - Theoretical physics

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

EPJ Web of Conferences

ISSN

2100-014X

e-ISSN

—

Volume of the periodical

37

Issue of the periodical within the volume

09036

Country of publishing house

FR - FRANCE

Number of pages

3

Pages from-to

1-3

UT code for WoS article

—

EID of the result in the Scopus database

—