Observation of B(s)(0) -} J/psi f(0)(980) and Evidence for B(s)(0) -} J/psi f(0)(1370)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10106095" target="_blank" >RIV/00216208:11320/11:10106095 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.121802" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.106.121802</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.106.121802" target="_blank" >10.1103/PhysRevLett.106.121802</a>

Result language
angličtina
Original language name
Observation of B(s)(0) -} J/psi f(0)(980) and Evidence for B(s)(0) -} J/psi f(0)(1370)
Original language description
We report the observation of B(s)(0) -} J/psi f(0(980)) and evidence for B(s)(0) -} J/psi f(0)(1370), which are CP eignstate decay modes. These results are obtained from 121.4 fb(-1) of data collected at the Y(5S) resonance with the Belle detector at theKEKB e(+)e(-) collider. We measure the branching fractions B(B(s)(0) -} J/psi f(0)(980); f(0)(980) -} pi(+)pi(-)) = (1.16(-0.19)(+0.31)(stat)(-0.17)(+0.15)(syst)(-0.18)(+0.26)(N(Bs(*)(B) over bars(*)))) X 10(-4) with a significance of 8.4 sigma, and B(B(s)(0) -} j/psi f(0)(1370); f(0)(1370) -} pi(+)pi(-)) = (0.34(-0.14)(+0.11)(stat)(-0.02)(+0.03)(syst)(-0.05)(+0.08) (N(Bs(*)(B) over bars(*)))) X 10(-4) with a significance of 4.2 sigma. The last error listed is due to uncertainty in the number of produced B(s)((*)) (B) over bar ((*))(s) pairs.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Project
<a href="/en/project/LA10033" target="_blank" >LA10033: Participation in the Belle a Belle II experiments: study of B-meson decays</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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