Measurement of yCP in D0-D¯0 oscillation using quantum correlations in e+e- →D0D¯0 at √s = 3.773 GeV M. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
Material type:
ArticleSubject(s): квантовые корреляции | BESIIIGenre/Form: статьи в журналах Online resources: Click here to access online
In:
Physics Letters B Vol. 744. P. 339-346Abstract: We report a measurement of the parameter yCP in D0–D0 oscillations performed by taking advantage of quantum coherence between pairs of D0D0 mesons produced in e+e− annihilations near threshold. In this work, doubly-tagged D0D0 events, where one D decays to a CP eigenstate and the other D decays in a semileptonic mode, are reconstructed using a data sample of 2.92 fb−1 collected with the BESIII detector at the center-of-mass energy of √s = 3.773 GeV. We obtain yCP = (−2.0 ± 1.3 ± 0.7)%, where the first uncertainty is statistical and the second is systematic. This result is compatible with the current world average.
Библиогр.: 36 назв.
We report a measurement of the parameter yCP in D0–D0 oscillations performed by taking advantage of quantum coherence between pairs of D0D0 mesons produced in e+e− annihilations near threshold. In this work, doubly-tagged D0D0 events, where one D decays to a CP eigenstate and the other D decays in a semileptonic mode, are reconstructed using a data sample of 2.92 fb−1 collected with the BESIII detector at the center-of-mass energy of √s = 3.773 GeV. We obtain yCP = (−2.0 ± 1.3 ± 0.7)%, where the first uncertainty is statistical and the second is systematic. This result is compatible with the current world average.
There are no comments on this title.