Observation of CP violation in B+ to DK+ decays

The LHCb Collaboration; Matthew Needham; Franz Muheim; Peter Clarke; Yuehong Xie; Stephan Eisenhardt

doi:10.1016/j.physletb.2012.04.060

Observation of CP violation in B+ to DK+ decays

The LHCb Collaboration, Matthew Needham, Franz Muheim, Peter Clarke, Yuehong Xie, Stephan Eisenhardt

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	203-212
Number of pages	10
Journal	Physics Letters B
Volume	B712
Early online date	16 Mar 2012
DOIs	https://doi.org/10.1016/j.physletb.2012.04.060 https://doi.org/10.1016/j.physletb.2012.05.060
Publication status	Published - 6 Jun 2012

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title = "Observation of CP violation in B+ to DK+ decays",

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.",

author = "Stephen Playfer and {The LHCb Collaboration} and Matthew Needham and Franz Muheim and Peter Clarke and Yuehong Xie and Stephan Eisenhardt",

year = "2012",

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doi = "10.1016/j.physletb.2012.04.060",

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T1 - Observation of CP violation in B+ to DK+ decays

AU - Playfer, Stephen

AU - The LHCb Collaboration

AU - Needham, Matthew

AU - Muheim, Franz

AU - Clarke, Peter

AU - Xie, Yuehong

AU - Eisenhardt, Stephan

PY - 2012/6/6

Y1 - 2012/6/6

N2 - 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.

AB - 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.

U2 - 10.1016/j.physletb.2012.04.060

DO - 10.1016/j.physletb.2012.04.060

M3 - Article

VL - B712

SP - 203

EP - 212

JO - Physics Letters B

JF - Physics Letters B

SN - 0370-2693

ER -

Observation of CP violation in B+ to DK+ decays

Abstract

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