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Measurement of direct CP violation parameters in B+-J/?K+- and B+-J/??+- decays with 10.4 fb-1 of Tevatron data

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F13%3A00397639" target="_blank" >RIV/68378271:_____/13:00397639 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1103/PhysRevLett.110.241801" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.110.241801</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1103/PhysRevLett.110.241801" target="_blank" >10.1103/PhysRevLett.110.241801</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Measurement of direct CP violation parameters in B+-J/?K+- and B+-J/??+- decays with 10.4 fb-1 of Tevatron data

  • Original language description

    We present a measurement of the direct CP-violating charge asymmetry in B^+/- mesons decaying to J/psi K^+/- and J/psi pi^+/- where J/psi decays to mu^+ mu^-, using the full Run II data set of 10.4 fb^-1 of proton-antiproton collisions collected using the D0 detector at the Fermilab Tevatron Collider. A difference in the yield of B^- and B^+ mesons in these decays is found by fitting to the difference between their reconstructed invariant mass distributions resulting in asymmetries of ajpk =[0.59 +/- 0.37]%, which is the most precise measurement to date, and ajppi= [-4.2 +/- 4.5]%. Both measurements are consistent with standard model predictions.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BG - Nuclear, atomic and molecular physics, accelerators

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/LG12006" target="_blank" >LG12006: Collaboration on NOvA and D0 Experiments at Fermi National Laboratory, USA</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2013

  • 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 Letters

  • ISSN

    0031-9007

  • e-ISSN

  • Volume of the periodical

    110

  • Issue of the periodical within the volume

    24

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    7

  • Pages from-to

    "241801-1"-"241801-7"

  • UT code for WoS article

    000320307400004

  • EID of the result in the Scopus database