### Abstract

A model-dependent amplitude analysis of the decay B^{0} → D(K_{S} ^{0}π^{+}π^{−})K^{∗0} is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb^{−1}, recorded at √s=7 and 8 TeV by the LHCb experiment. The CP violation observables x_{±} and y_{±}, sensitive to the CKM angle γ, are measured to bex−=−0.15±0.14±0.03±0.01,y−=0.25±0.15±0.06±0.01,x+=0.05±0.24±0.04±0.01,y+=−0.65_{−0.23} ^{+0.24}±0.08±0.01, where the first uncertainties are statistical, the second systematic and the third arise from the uncertainty on the D → K_{S} ^{0}π^{+}π^{−} amplitude model. These are the most precise measurements of these observables. They correspond to γ = (80_{−22} ^{+21})° and r_{B0 }=0.39±0.13, where r_{B0 } is the magnitude of the ratio of the suppressed and favoured B^{0} → DK^{+}π^{−} decay amplitudes, in a Kπ mass region of ±50 MeV around the K^{*}(892)^{0} mass and for an absolute value of the cosine of the K^{*0} decay angle larger than 0.4.[Figure not available: see fulltext.]

Original language | English (US) |
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Article number | 137 |

Journal | Journal of High Energy Physics |

Volume | 2016 |

Issue number | 8 |

DOIs | |

State | Published - Aug 1 2016 |

### Keywords

- B physics
- CKM angle gamma
- CP violation
- Flavor physics
- Hadron-Hadron scattering (experiments)

### ASJC Scopus subject areas

- Nuclear and High Energy Physics

## Fingerprint Dive into the research topics of 'Measurement of the CKM angle γ using B <sup>0</sup> → DK <sup>*0</sup> with D → K <sub>S</sub> <sup>0</sup> π <sup>+</sup> π <sup>−</sup> decays'. Together they form a unique fingerprint.

## Cite this

^{0}→ DK

^{*0}with D → K

_{S}

^{0}π

^{+}π

^{−}decays.

*Journal of High Energy Physics*,

*2016*(8), [137]. https://doi.org/10.1007/JHEP08(2016)137