literature
Literature
Authors
Jobs
Seminars
Conferences
DataBETA

Measurement of the semileptonic CPCP asymmetry in B0−B‾0B^0-\overline{B}{}^0 mixing

Collaboration
Sep 30, 2014
9 pages
Published in:
  • Phys.Rev.Lett. 114 (2015) 041601
  • Published: Jan 28, 2015
e-Print:
DOI:
Report number:
  • CERN-PH-EP-2014-237,
  • LHCB-PAPER-2014-053
Experiments:
View in:
pdf
reference search110 citations

Citations per year

201420172020202320250510152025
Abstract: (arXiv)
The semileptonic CPCP asymmetry in B0−B‾0B^0-\overline{B}{}^0 mixing, aslda_{\rm sl}^d, is measured in proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb−1^{-1}, recorded by the LHCb experiment. Semileptonic B0B^0 decays are reconstructed in the inclusive final states D−μ+D^-\mu^+ and D∗−μ+D^{*-}\mu^+, where the D−D^- meson decays into the K+π−π−K^+\pi^-\pi^- final state, and the D∗−D^{*-} meson into the D‾0(→K+π−)π−\overline{D}{}^0(\rightarrow K^+\pi^-)\pi^- final state. The asymmetry between the numbers of D(∗)−μ+D^{(*)-}\mu^+ and D(∗)+μ−D^{(*)+}\mu^- decays is measured as a function of the decay time of the B0B^0 mesons. The CPCP asymmetry is measured to be asld=(−0.02±0.19±0.30)%a_{\rm sl}^d = (-0.02 \pm 0.19 \pm 0.30)\%, where the first uncertainty is statistical and the second systematic. This is the most precise measurement of aslda_{\rm sl}^d to date and is consistent with the prediction from the Standard Model.
Note:
  • 10 pages, 2 figures
  • p p: scattering
  • p p: colliding beams
  • production: asymmetry
  • asymmetry: difference
  • B0: semileptonic decay
  • D: hadronic decay
  • D*(2010): hadronic decay
  • decay: time
  • asymmetry: CP: measured
  • CP: violation
Loading ...