Observation of CP violation in B ± → D K ± decays

Calvo Gómez, Míriam; Camboni, Alessandro; Vilasís Cardona, Xavier; LHCb Collaboration - CERN

Publication date

2012-06-06

URI http://hdl.handle.net/20.500.14342/3379

DOI

https://doi.org/10.1016/j.physletb.2012.04.060

Abstract

An analysis of B+ to DK+ and B+ to Dpi+ decays is presented where the D meson is reconstructed in the two-body final states: K+pi-, K+K-, pi+pi- and pi+K-. Using 1.0 fb-1 of LHCb data, measurements of several observables are made including the first observation of the suppressed mode B+ to DK+, D to pi+K-. CP violation in B+ to DK+ decays is observed with 5.8 sigma significance.

Document Type

Article

Published version

Language

English

Subject (CDU)

53 - Physics

Keywords

Gran col·lisionador d'hadrons (França i Suïssa)

Mesons

Física--Mesuraments

Partícules (Física nuclear)

Pages

10 p.

Publisher

Elsevier

Is part of

Physics Letters B, 2012, Vol. 712, No. 3 (Juny)

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Articles publicats en revistes [550]

Rights

Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by-nc-nd/4.0/