Measurement of the branching fraction of the decay B- RIGHTWARDS ARROW D0ρð770Þ - at Belle II

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10494108" target="_blank" >RIV/00216208:11320/24:10494108 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PlVnqIlZZH" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=PlVnqIlZZH</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.109.L111103" target="_blank" >10.1103/PhysRevD.109.L111103</a>

Result language
angličtina
Original language name
Measurement of the branching fraction of the decay B- RIGHTWARDS ARROW D0ρð770Þ - at Belle II
Original language description
We measure the branching fraction of the decay B- RIGHTWARDS ARROW D0ρð770Þ- using data collected with the Belle IIdetector. The data contain 387 million BB- pairs produced in eþe- collisions at the ϒð4SÞ resonance. Wereconstruct 8360 180 decays from an analysis of the distributions of the B- energy and the ρð770Þ-helicity angle. We determine the branching fraction to be ð0.939 0.021ðstatÞ 0.050ðsystÞÞ%, inagreement with previous results. Our measurement improves the relative precision of the world average bymore than a factor of two.
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
<a href="/en/project/GA22-18469S" target="_blank" >GA22-18469S: Studies of the Beyond Standard Model phenomena in the flavor sector with the Belle II Experiment</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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