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Article
Report number arXiv:1906.08297 ; LHCb-PAPER-2019-021 ; CERN-EP-2019-111
Title Measurement of CP observables in the process B0DK0 with two- and four-body D decays
Author(s) LHCb Collaboration  显示全部 881 名作者
Publication 2019-08-07
Imprint 19 Jun 2019
Number of pages 30
Note All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-021.html (LHCb public pages)
In: JHEP 1908 (2019) 041
DOI 10.1007/JHEP08(2019)041
Subject category Particle Physics - Experiment ; hep-ex
Accelerator/Facility, Experiment CERN LHC ; LHCb
Free keywords flavor physics ; LHCb
Abstract Measurements of CP observables in B0DK0 decays are presented, where D represents a superposition of D0 and D¯0 states. The D meson is reconstructed in the two-body final states K+π, π+K, K+K and π+π, and, for the first time, in the four-body final states K+ππ+π, π+Kπ+π and π+ππ+π. The analysis uses a sample of neutral B mesons produced in proton-proton collisions, corresponding to an integrated luminosity of 1.0, 2.0 and 1.8 fb1 collected with the LHCb detector at centre-of-mass energies of s= 7, 8 and 13 TeV, respectively. First observations of the decays B0D(π+K)K0 and B0D(π+ππ+π)K0 are obtained. The measured observables are interpreted in terms of the CP-violating weak phase γ.
Copyright/License Publication: (License: CC-BY-4.0)
Preprint: © 2019-2024 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: nathalie.grub@cern.ch


 记录创建於2019-06-21,最後更新在2024-10-02


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