First observation of BRIGHTWARDS ARROW(D)over-bar1(RIGHTWARDS ARROW(D)over-barπ+π-)l plus νl and measurement of the BRIGHTWARDS ARROW(D)over-bar(*)πl+νl and BRIGHTWARDS ARROW(D)over-bar(*) π+π-l plus νl branching fractions with hadronic tagging 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%3A10476397" target="_blank" >RIV/00216208:11320/23:10476397 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=GVkj9_VPQ_" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=GVkj9_VPQ_</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.107.092003" target="_blank" >10.1103/PhysRevD.107.092003</a>
Alternative languages
Result language
angličtina
Original language name
First observation of BRIGHTWARDS ARROW(D)over-bar1(RIGHTWARDS ARROW(D)over-barπ+π-)l plus νl and measurement of the BRIGHTWARDS ARROW(D)over-bar(*)πl+νl and BRIGHTWARDS ARROW(D)over-bar(*) π+π-l plus νl branching fractions with hadronic tagging at Belle
Original language description
We report measurements of the ratios of branching fractions for B-& iota; over bar Do ⠂ thorn & pi;e thorn & nu;e and B-& iota; over bar Do ⠂ thorn & pi; thorn & pi;-e thorn & nu;e relative to B-& iota; over bar D ⠂e thorn & nu;e decays with e 1/4 e, & mu;. These results are obtained from a data sample that contains 772 x 106BB over bar pairs collected near the ϒo4S thorn resonance with the Belle detector at the KEKB asymmetric energy e thorn e- collider. Fully reconstructing both B mesons in the event, we obtain BoB0-& iota; over bar D0 & pi;-e thorn & nu;e thorn BoB0-& iota;D ⠂-e thorn & nu;e thorn 1/4 o7.23 ⠃ 0.36 ⠃ 0.14 thorn %, BoB thorn -& iota;D-& pi; thorn e thorn & nu;e thorn BoB thorn -& iota; over bar D ⠂0e thorn & nu;e thorn 1/4 o6.78 ⠃ 0.24 ⠃ 0.18 thorn %, BoB0-& iota; over bar D ⠂0 & pi;-e thorn & nu;e thorn BoB0-& iota;D ⠂-e thorn & nu;e thorn 1/4 o11.10 ⠃0.48 ⠃0.23 thorn %, BoB thorn BoB thorn -& iota;-& iota;D ⠂- over bar D ⠂0 & pi; thorn e thorn e thorn & nu;e & nu;e thorn thorn 1/4 o9.50 ⠃0.33 ⠃0.34 thorn %, BoB0-& iota;D-& pi; thorn & pi;-e thorn & nu;e thorn BoB0-& iota;D ⠂-e thorn & nu;e thorn 1/4 o2.91 ⠃0.37 ⠃0.26 thorn %, BoB thorn -& iota; over bar D0 & pi; thorn & pi;-e thorn & nu;e thorn BoB thorn -& iota; over bar D ⠂0e thorn & nu;e thorn 1/4o3.10 ⠃0.26 ⠃0.22 thorn %, BoB0-& iota;D ⠂-& pi; thorn & pi;-e thorn & nu;e thorn BoB0-& iota;D ⠂-e thorn & nu;e thorn 1/4o0.99 ⠃0.43 ⠃ 0.20 thorn %, BoB thorn -& iota; over bar D ⠂0 & pi; thorn & pi;-e thorn & nu;e thorn BoB thorn -& iota; over bar D ⠂0e thorn & nu;e thorn 1/4 o1.25 ⠃ 0.27 ⠃ 0.15 thorn %, where the uncertainties are statistical and system-atic, respectively. These are the most precise measurements of these branching fraction ratios to date.
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
9
Country of publishing house
US - UNITED STATES
Number of pages
23
Pages from-to
092003
UT code for WoS article
001023513800009
EID of the result in the Scopus database
2-s2.0-85159662434