Parameters of scalar resonances from the combined analysis of data on processes pi pi -> pi pi, K(K)over-bar, eta eta and J/psi decays
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F14%3A00428163" target="_blank" >RIV/61389005:_____/14:00428163 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.89.036010" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.89.036010</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.89.036010" target="_blank" >10.1103/PhysRevD.89.036010</a>
Alternative languages
Result language
angličtina
Original language name
Parameters of scalar resonances from the combined analysis of data on processes pi pi -> pi pi, K(K)over-bar, eta eta and J/psi decays
Original language description
A combined analysis of data on the isoscalar S-wave processes pi pi -> pi pi, K (K) over bar, eta eta and on decays J/psi -> phi pi pi, phi K (K) over bar from the DM2, Mark III, and BES II Collaborations is performed to study f(0) mesons. The method ofanalysis is based on analyticity and unitarity and uses an uniformization procedure. In the analysis limited only to the multichannel pi pi-scattering data, two possible sets of parameters of the f(0)(500) were found: In both cases the mass was about 700MeV but the total width was either about 680 or 1040 MeV. The extension of the analysis using only the DM2 and Mark III data on the J/psi decays does not allow us to choose between these sets. However, the data from BES II on the di-pion mass distribution in the decay J/psi -> phi pi(+)pi(-) clearly prefer the wider f(0)(500) state. Spectroscopic implications from the results of the analysis are also discussed.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BE - Theoretical physics
OECD FORD branch
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Result continuities
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
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
e-ISSN
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Volume of the periodical
89
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
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UT code for WoS article
000332163900007
EID of the result in the Scopus database
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