Measurements of the branching fractions of Ξ plus c → Σ+K0S, Ξ+c → Ξ0π+, and Ξ plus c → Ξ0K+at Belle and Belle II
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510991" target="_blank" >RIV/00216208:11320/25:10510991 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-ogMx.K-rK" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=-ogMx.K-rK</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP08(2025)195" target="_blank" >10.1007/JHEP08(2025)195</a>
Alternative languages
Result language
angličtina
Original language name
Measurements of the branching fractions of Ξ plus c → Σ+K0S, Ξ+c → Ξ0π+, and Ξ plus c → Ξ0K+at Belle and Belle II
Original language description
Using 983.0 fb-1 and 427.9 fb-1 data samples collected with the Belle and Belle II detectors at the KEKB and SuperKEKB asymmetric energy e+ e- colliders, respectively, we present studies of the Cabibbo-favored Xi+c decays Xi+c -> Sigma+ K0S and Xi+c -> Xi 0 pi+, and the singly Cabibbo-suppressed decay Xi+c -> Xi 0K+. The ratios of branching fractions of Xi+c -> Sigma+ K0S and Xi+c -> Xi 0K+ relative to that of Xi+c -> Xi- pi+ pi+ are measured for the first time, while the ratio B(Xi+c -> Xi 0p+)/B(Xi+c -> Xi- pi+ pi+) is also determined and improved by an order of magnitude in precision. The measured branching fraction ratios are B(Xi+c -> Sigma+ K0S) B(Xi+c -> Xi-p+ p+) = 0.067 +/- 0.007 +/- 0.003, B Xi+c -> Xi 0 pi+) B(Xi+c -> Xi-pi+ pi+) = 0.251 +/- 0.005 +/- 0.010, B(Xi+c -> Xi 0K+) B(Xi+c -> Xi-pi+ pi+) = 0.017 +/- 0.003 +/- 0.001. Additionally, the ratio B(Xi+c -> Xi 0K+)/B(Xi+c -> Xi 0 pi+) is measured to be 0.068 +/- 0.010 +/- 0.004. Here, the first and second uncertainties are statistical and systematic, respectively. Multiplying the ratios by the branching fraction of the normalization mode, B(Xi+c -> Xi- pi+ pi+) = (2.9 +/- 1.3)%, we obtain the following absolute branching fractions B(Xi+c -> Sigma+ K0S) = (0.194 +/- 0.021 +/- 0.009 +/- 0.087)%, B(Xi+c -> Xi 0p+) = (0.728 +/- 0.014 +/- 0.027 +/- 0.326)%, B(Xi+c -> Xi 0K+) = (0.049 +/- 0.007 +/- 0.003 +/- 0.022)%, where the third uncertainties are from B(Xi+c -> Xi- pi+pi+).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
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)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of High Energy Physics
ISSN
1029-8479
e-ISSN
1029-8479
Volume of the periodical
2025
Issue of the periodical within the volume
8
Country of publishing house
DE - GERMANY
Number of pages
20
Pages from-to
195
UT code for WoS article
001579030000001
EID of the result in the Scopus database
2-s2.0-105017143026