Measurement of the branching fraction of Λc+ → pKS0π0 at Belle

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510191" target="_blank" >RIV/00216208:11320/25:10510191 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1diwi7Mkp5" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=1diwi7Mkp5</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/4mnw-tvks" target="_blank" >10.1103/4mnw-tvks</a>

Result language
angličtina
Original language name
Measurement of the branching fraction of Λc+ → pKS0π0 at Belle
Original language description
We report a precise measurement of the ratio of branching fractions B(Lambda(+)(c) -> pK(S)(0)pi(0))/B(Lambda(+)(c) -> pK(-)p(+)) using 980 fb(-1) of e(+)e(-) data from the Belle experiment. We obtain a value of B(Lambda(+)(c) -> pK(S)(0)pi(0))/B(Lambda(+)(c) -> pK(-)p(+)) = 0.339 +/- 0.002 +/- 0.009, where the first and second uncertainties are statistical and systematic, respectively. This Belle result is consistent with the previous measurement from the CLEO experiment but has a fivefold improvement in precision. By combining our result with the world average B(Lambda(+)(c) -> pK(-)p(+)), we obtain the absolute branching fraction B(Lambda(+)(c) -> pK(S)(0)pi(0)) = (2.12 +/- 0.01 +/- 0.05 +/- 0.10)%, where the uncertainties are statistical, systematic, and the uncertainty in the absolute branching fraction scale B(Lambda(+)(c) -> pK(-)p(+)), respectively. This measurement can shed light on hadronic decay mechanisms in charmed baryon decays.
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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