Measurement of the branching fractions for Cabibbo-suppressed decays D plus -K plus K-π+π0 and D+(s)- K plus π-π+π0 at Belle
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F23%3A10476421" target="_blank" >RIV/00216208:11320/23:10476421 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=mME-6RXuX8" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=mME-6RXuX8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.107.033003" target="_blank" >10.1103/PhysRevD.107.033003</a>
Alternative languages
Result language
angličtina
Original language name
Measurement of the branching fractions for Cabibbo-suppressed decays D plus -K plus K-π+π0 and D+(s)- K plus π-π+π0 at Belle
Original language description
We present measurements of the branching fractions for the singly Cabibbo-suppressed decays D+ -K+K-x-+x-0 and D+s -K+x--x-+x-0, and the doubly Cabibbo-suppressed decay D+ -K+x--x-+x-0, based on 980 fb-1 of data recorded by the Belle experiment at the KEKB e+e- collider. We measure these modes relative to the Cabibbo-favored modes D+ -K-x-+x-+x-0 and D+s -K+K-x-+x-0. Our results for the ratios of branching fractions are B(D+ -K+K-x-+x-0)/B(D+ -K-x-+x-+x-0) = (11.32 +/- 0.13 +/- 0.26)%, B(D+ -K+x--x-+x-0)/B(D+ -K-x-+x-+x-0) = (1.68 +/- 0.11 +/- 0.03)%, and B(D+s -K+x--x-+x-0)/ B(D+s -K+K-x-+x-0) = (17.13 +/- 0.62 +/- 0.51)%, where the uncertainties are statistical and systematic, respectively. The second value corresponds to (5.83 +/- 0.42) x tan4 BC, where BC is the Cabibbo angle; this value is larger than other measured ratios of branching fractions for a doubly Cabibbo-suppressed charm decay to a Cabibbo-favored decay. Multiplying these results by world average values for B(D+ -K-x-+x-+x-0) and B(D+s -K+K-x-+x-0) yields B(D+ -K+K-x-+x-0) = (7.08 +/- 0.08 +/- 0.16 +/- 0.20) x 10-3, B(D+ -K+x--x-+x-0) = (1.05 +/- 0.07 +/- 0.02 +/- 0.03) x 10-3, and B(D+s -K+x--x-+x-0) = (9.44 +/- 0.34 +/- 0.28 +/- 0.32) x 10-3, where the third uncertainty is due to the branching fraction of the normalization mode. The first two results are consistent with, but more precise than, the current world averages. The last result is the first measurement of this branching fraction.
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
—
OECD FORD branch
10300 - Physical sciences
Result continuities
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)
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
107
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
033003
UT code for WoS article
000977509900001
EID of the result in the Scopus database
2-s2.0-85148380322