Model-independent measurement of D0-(D)over-bar0 mixing parameters in D0 → KS0π+π- decays at Belle and Belle II

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10510172" target="_blank" >RIV/00216208:11320/25:10510172 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WgPqKR2z8q" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=WgPqKR2z8q</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/7p5s-f9qp" target="_blank" >10.1103/7p5s-f9qp</a>

Result language
angličtina
Original language name
Model-independent measurement of D0-(D)over-bar0 mixing parameters in D0 → KS0π+π- decays at Belle and Belle II
Original language description
We perform a model-independent measurement of the D-0-(D) over bar (0) mixing parameters using samples of e(+)e(-) -collision data collected by the Belle and Belle II experiments that have integrated luminosities of 951 fb(-1) and 408 fb(-1), respectively. Approximately 2.05 x 10(6) neutral D mesons are reconstructed in the D-0 -> K-S(0)pi(+)pi(-) channel, with the neutral D flavor tagged by the charge of the pion in the D*+ -> D-0 pi(+) decay. Assuming charge-parity symmetry, the mixing parameters are measured to be x = (4.0 +/- 1.7 +/- 0.4) x 10(-3) and y = (2.9 +/- 1.4 +/- 0.3) x 10(-3), where the first uncertainties are statistical and the second systematic. The results are consistent with previous determinations.
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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