Measurement of CP asymmetries in B0 RIGHTWARDS ARROW φKs0 decays with Belle II
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476864" target="_blank" >RIV/00216208:11320/23:10476864 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JzMn_3RcX" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=JzMn_3RcX</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.108.072012" target="_blank" >10.1103/PhysRevD.108.072012</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of CP asymmetries in B0 RIGHTWARDS ARROW φKs0 decays with Belle II
Original language description
We present a measurement of time-dependent rate asymmetries in B-0 -> phi K-s(0) decays to search for non-standard-model physics in b -> q (q) over bars transitions. The data sample is collected with the Belle II detector at the SuperKEKB asymmetric-energy e(+)e(-) collider in 2019-2022 and contains (387 +/- 6) x 10(6) bottomantibottom mesons from gamma(4S) resonance decays. We reconstruct 162 +/- 17 signal events and extract the charge-parity (CP) violating parameters from a fit to the distribution of the proper-decay-time difference of the two B mesons. The measured direct and mixing-induced CP asymmetries are C = -0.31 +/- 0.20 +/- 0.05 and S = 0.54 +/- 0.26(-0.08)(+0.06), respectively, where the first uncertainties are statistical and the second are systematic. The results are compatible with the CP asymmetries observed in b -> c (c) over bars transitions.
Czech name
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Czech description
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Classification
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
Result continuities
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)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D
ISSN
2470-0010
e-ISSN
2470-0029
Volume of the periodical
108
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
072012
UT code for WoS article
001094295500001
EID of the result in the Scopus database
2-s2.0-85178283566