Measurement of the branching fraction and CP asymmetry of B0 RIGHTWARDS ARROW π0π0 decays using 198 x 106 B(B)over-bar pairs in Belle II data

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476831" target="_blank" >RIV/00216208:11320/23:10476831 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=u.kvWX4T57" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=u.kvWX4T57</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.107.112009" target="_blank" >10.1103/PhysRevD.107.112009</a>

Result language
angličtina
Original language name
Measurement of the branching fraction and CP asymmetry of B0 RIGHTWARDS ARROW π0π0 decays using 198 x 106 B(B)over-bar pairs in Belle II data
Original language description
We report measurements of the branching fraction and CP asymmetry in B-0 -> pi(0)pi(0) decays reconstructed at Belle II in an electron-positron collision sample containing 198 x 10(6) BB pairs. We measure a branching fraction B(B-0 -> pi(0)pi(0)) = (1.38 +/- 0.27 +/- 0.22) x 10(-6) and a CP asymmetry A(CP)(B-0 -> pi(0)pi(0)) = 0.14 +/- 0.46 +/- 0.07, where the first uncertainty is statistical and the second is systematic.
Czech name
—
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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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