All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Measurment of branching fractions and search for CP violation in D-0 -> pi(+)pi(-)eta, D-0 -> K+K-eta, and D-0 -> phi eta at Belle

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F21%3A10439946" target="_blank" >RIV/00216208:11320/21:10439946 - isvavai.cz</a>

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7Mv1JoqVXF" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7Mv1JoqVXF</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1007/JHEP09(2021)075" target="_blank" >10.1007/JHEP09(2021)075</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurment of branching fractions and search for CP violation in D-0 -> pi(+)pi(-)eta, D-0 -> K+K-eta, and D-0 -> phi eta at Belle

  • Original language description

    We measure the branching fractions and CP asymmetries for the singly Cabibbo-suppressed decays D-0 -&gt; pi(+)pi(-)eta, D-0 -&gt; K+K-eta, and D-0 -&gt; phi eta, using 980 fb(-1) of data from the Belle experiment at the KEKB e(+)e(-) collider. We obtain B(D-0 -&gt; pi+pi-eta) = [1.22 +/- 0.02 (stat) +/- 0.02 (syst) +/- 0.03 (B-ref)] x 10(-3), B(D-0 -&gt; K+K-eta) = [1.801(-0.06)(+0.07) (stat) +/- 0.04 (syst) +/- 0.05 (B-ref)] x 10(-4), B(D-0 -&gt; phi eta) = [1.84 +/- 0.09 (stat) +/- 0.06 (syst) +/- 0.05 (B-ref)] x 10(-4), where the third uncertainty (B-ref) is from the uncertainty in the branching fraction of the reference mode D-0 -&gt; K-pi(+)eta. The color-suppressed decay D-0 -&gt; phi eta is observed for the first time, with very high significance. The results for the CP asymmetries are A(CP) (D-0 -&gt; pi(+)pi(-)eta) = [0.9 +/- 1.2 (stat) +/- 0.5 (syst)]%, A(CP)(D-0 -&gt; K+K-eta)=[-1.4 +/- 3.3 (stat) +/- 1.1 (syst)]%, A(CP)(D-0 -&gt; phi eta) = [-1.9 +/- 4.4 (stat) +/- 0.6 (syst)]%. The results for D-0 -&gt; pi(+)pi(-)eta are a significant improvement over previous results. The branching fraction and Acp results for D-0 -&gt; K+K-eta, and the A(CP) result for D-0 -&gt; phi eta, are the first such measurements. No evidence for CP violation is found in any of these decays.

  • Czech name

  • Czech description

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/LTT17020" target="_blank" >LTT17020: Study of Beyond Standard Model Physics with the International Experiment Belle II in Japan</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of High Energy Physics [online]

  • ISSN

    1029-8479

  • e-ISSN

  • Volume of the periodical

    Neuveden

  • Issue of the periodical within the volume

    9

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    25

  • Pages from-to

    075

  • UT code for WoS article

    000697366500001

  • EID of the result in the Scopus database

    2-s2.0-85115637472