Measurement of the CP asymmetry in B → D s D 0 and B → D D 0 decays

Research output: Contribution to journalArticlepeer-review

Authors

  • LHCb Collaboration

Colleges, School and Institutes

External organisations

  • Institution Nikhef National Institute for Subatomic Physics
  • Universidad de Santiago de Compostela
  • BRISTOL UNIVERSITY
  • LPC
  • University of Cincinnati
  • Laboratori Nazionali dell'Infn di Frascati
  • Technische Universität Dortmund
  • European Organization for Nuclear Research (CERN)
  • University of Glasgow
  • Universitat de Barcelona
  • Petersburg Nuclear Physics Institute (PNPI)
  • Imperial College London
  • Universidade Federal Do Rio de Janeiro (UFRJ)
  • INFN Padova
  • IN2P3
  • Tsinghua University
  • Sezione INFN di Firenze
  • Sezione INFN di Ferrara
  • Department of Biology and Evolution; University of Ferrara; Ferrara; Italy
  • University of Maryland, College Park, Maryland 20742 USA
  • University of Manchester
  • Ruprecht-Karls-Universität Heidelberg
  • CNRS/IN2P3
  • Institute for High Energy Physics (IHEP)
  • Syracuse University, Syracuse, New York 13244, USA
  • Universität Zürich
  • Department of Physics and Astronomy and INFN
  • THE UNIVERSITY OF WARWICK
  • Laboratoire Leprince-Ringuet
  • Yandex School of Data Analysis

Abstract

The CP asymmetry in B → D s D 0 and B → D D 0 decays is measured using LHCb data corresponding to an integrated luminosity of 3.0 fb −1 , collected in pp collisions at centre-of-mass energies of 7 and 8 TeV. The results are ACP(B−→Ds−D0)=(−0.4±0.5±0.5)%andACP(B−→D−D0)=(2.3±2.7±0.4)%, where the first uncertainties are statistical and the second systematic. This is the first measurement of ACP(B−→Ds−D0) and the most precise determination of A C P (B → D D 0 ). Neither result shows evidence of CP violation.

Bibliographic note

The LHCb collaboration, Aaij, R., Adeva, B. et al. J. High Energ. Phys. (2018) 2018: 160. https://doi.org/10.1007/JHEP05(2018)160

Details

Original languageEnglish
Article number160
JournalJournal of High Energy Physics
Volume2018
Issue number5
Publication statusPublished - 25 May 2018

Keywords

  • B physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas