Measurement of the inclusive branching fractions for Bs0 decays into D mesons via hadronic tagging

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510150" target="_blank" >RIV/00216208:11320/25:10510150 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8mSn7lX5ZP" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8mSn7lX5ZP</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP04(2025)114" target="_blank" >10.1007/JHEP04(2025)114</a>

Result language
angličtina
Original language name
Measurement of the inclusive branching fractions for Bs0 decays into D mesons via hadronic tagging
Original language description
We report measurements of the absolute branching fractions B(B-s(0) -> D-s(+/-) X), B(B-s(0) -> D-0/(D) over bar (0) X), and B(B-s(0) -> D-+/- X), where the latter is measured for the first time. The results are based on a 121.4 fb(-1) data sample collected at the Gamma(10860) resonance by the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We reconstruct one B-s(0) meson in e(+)e(-) -> Gamma(10860). B-s*(B) over bar (s)* events and measure yields of D-s(+), D-0, and D+ mesons in the rest of the event. We obtain B(B-s(0) -> D-+/- X) = (68.6 +/- 7.2 +/- 4.0)%, B(B-s(0) -> D-0/(D) over bar X-0) = (21.5 +/- 6.1 +/- 1.8)%, and B(B-s(0) -> D-+/- X) = (12.6 +/- 4.6 +/- 1.3)%, where the first uncertainty is statistical and the second is systematic. Averaging with previous Belle measurements gives B(B-s(0) -> D-s(+/-) X) = (63.4 +/- 4.5 +/- 2.2)% and B(B-s(0) -> D-0/(D) over bar X-0) = (23.9 +/- 4.1 +/- 1.8)%. For the B-s(0) production fraction at the Gamma(10860), we find f(s) = (21.4(-1.7)(+1.5))%.
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
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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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