Measurement of the CKM angle $γ$ with $ B^\pm \to D[K^\mp π^\pm π^\pm π^\mp] h^\pm$ decays using a binned phase-space approach

LHCb collaboration

doi:10.1007/JHEP07(2023)138

paper

Measurement of the CKM angle $γ$ with $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ decays using a binned phase-space approach

arXiv:2209.03692 · doi:10.1007/JHEP07(2023)138

Abstract

The CKM angle $γ$ is determined from $C P$ -violating observables measured in $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ , $(h = K, π)$ decays, where the measurements are performed in bins of the decay phase-space of the $D$ meson. Using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7, 8$ and $13 TeV$ , corresponding to a total integrated luminosity of $9 fb^{- 1}$ , $γ$ is determined to be \begin{equation*} γ= \left( 54.8 \: ^{+\:6.0 }_{-\:5.8} \: ^{+\:0.6}_{-\:0.6} \: ^{+\:6.7}_{-\:4.3} \right)^\circ, \end{equation*} where the first uncertainty is statistical, the second systematic and the third from the external inputs on the coherence factors and strong phases of the $D$ -meson decays.

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-017.html (LHCb public pages)

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Measurement of $D^{0} - D^{0}$ mixing and search for $C P$ violation with $D^{0} \to K^{+} π^{-}$ decays

Measurement of the CKM angle γ with B±→D[K∓π±π±π∓]h± decays using a binned phase-space approach

Abstract

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Cited by in corpus (1)

Measurement of the CKM angle $γ$ with $B^{\pm} \to D [K^{\mp} π^{\pm} π^{\pm} π^{\mp}] h^{\pm}$ decays using a binned phase-space approach