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Measurement of CP observables in $B^{\pm} \to DK^{*\pm}$ decays using two- and four-body D final states


LHCb Collaboration; Bernet, R; Müller, K; Serra, N; Steinkamp, O; Straumann, U; Vollhardt, A; et al (2017). Measurement of CP observables in $B^{\pm} \to DK^{*\pm}$ decays using two- and four-body D final states. Journal of High Energy Physics, 11:156.

Abstract

Measurements of CP observables in $B^{\pm} \to DK^{*\pm}$ decays are presented, where D denotes a superposition of $D^0$ and $\overline{D}^0$ meson states. Decays of the D meson to $K^- \pi^+, K^- K^+, \pi^- \pi^+, K^- \pi^+ \pi^- \pi^+$ and $\pi^- \pi^+ \pi^- \pi^+$ are used and the $K^{*\pm}$ meson is reconstructed in the $K_S^0\pi^{\pm}$ final state. This analysis uses a data sample of pp collisions collected with the LHCb experiment, corresponding to integrated luminosities of 1 fb$^{−1}$, 2 fb$^{−1}$ and 1.8 fb$^{−1}$ at centre-of-mass energies $\sqrt{s}$=7 TeV, 8 TeV and 13 TeV, respectively. The sensitivity of the results to the CKM angle $γ$ is discussed.

Abstract

Measurements of CP observables in $B^{\pm} \to DK^{*\pm}$ decays are presented, where D denotes a superposition of $D^0$ and $\overline{D}^0$ meson states. Decays of the D meson to $K^- \pi^+, K^- K^+, \pi^- \pi^+, K^- \pi^+ \pi^- \pi^+$ and $\pi^- \pi^+ \pi^- \pi^+$ are used and the $K^{*\pm}$ meson is reconstructed in the $K_S^0\pi^{\pm}$ final state. This analysis uses a data sample of pp collisions collected with the LHCb experiment, corresponding to integrated luminosities of 1 fb$^{−1}$, 2 fb$^{−1}$ and 1.8 fb$^{−1}$ at centre-of-mass energies $\sqrt{s}$=7 TeV, 8 TeV and 13 TeV, respectively. The sensitivity of the results to the CKM angle $γ$ is discussed.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2017
Deposited On:31 Jan 2018 13:13
Last Modified:19 Feb 2018 10:44
Publisher:Springer
ISSN:1029-8479
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1007/JHEP11(2017)156

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