Observation of the decays B+ → Σc(2455)++(Ξ)over-barc- and B0 → Σc (2455)0(Ξ)over-barc0

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510997" target="_blank" >RIV/00216208:11320/25:10510997 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=H.XWzKKoTc" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=H.XWzKKoTc</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/2fhj-8vyx" target="_blank" >10.1103/2fhj-8vyx</a>

Result language
angličtina
Original language name
Observation of the decays B+ → Σc(2455)++(Ξ)over-barc- and B0 → Σc (2455)0(Ξ)over-barc0
Original language description
We report the first observation of the two-body baryonic decays B+ -> Sigma(c)(2455)(++)(Xi) over bar (-)(c) and B-0 -> Sigma(c) (2455)(0)(Xi) over bar (-)(c) with significances of 7.3 sigma and 6.2 sigma, respectively, including statistical and systematic uncertainties. The branching fractions are measured to be B(B+ -> Sigma(c)(2455))(++)(Xi) over bar (-)(c) = (5.74 +/- 1.11 +/- 0.42(-1.53)(+2.47)) x 10(-4) and B(B-0 -> Sigma(c)(2455)(0)(Xi) over bar (0)(c)) = (4.83 +/- 1.12 +/- 0.37(-0.60)(+0.72) ) x 10(-4). The first and second uncertainties are statistical and systematic, respectively, while the third ones arise from the absolute branching fractions of (Xi) over bar (-)(c) or (Xi) over bar (0)(c) decays. The data samples used for this analysis have integrated luminosities of 711 fb(-1) and 365 fb(-1), and were collected at the (sic)(4S) resonance by the Belle and Belle II detectors operating at the KEKB and SuperKEKB asymmetric-energy e(+)e(-) colliders, respectively.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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