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Observation of the suppressed ADS modes B^pm to [π^pm K^mp π^+π^-]_D K^pm and B^pm to [π^pm K^mp π^+π^-]_D π^pm
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arxiv 1303.4646 v2 pith:X2TVJPKZ submitted 2013-03-19 hep-ex
Observation of the suppressed ADS modes B^pm to [π^pm K^mp π^+π^-]_D K^pm and B^pm to [π^pm K^mp π^+π^-]_D π^pm
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An analysis of $B^{\pm}\to DK^{\pm}$ and $B^{\pm}\to D\pi^{\pm}$ decays is presented where the $D$ meson is reconstructed in the four-body final state $K^{\pm}\pi^{\mp} \pi^+ \pi^-$. Using LHCb data corresponding to an integrated luminosity of $1.0{\rm \,fb}^{-1}$, first observations are made of the suppressed ADS modes $B^{\pm}\to [\pi^{\pm} K^{\mp}\pi^+\pi^-]_D K^{\pm}$ and $B^{\pm}\to [\pi^{\pm} K^{\mp} \pi^+\pi^- ]_D\pi^{\pm}$ with a significance of $5.1\sigma$ and greater than $10\sigma$, respectively. Measurements of CP asymmetries and CP-conserving ratios of partial widths from this family of decays are also performed. The magnitude of the ratio between the suppressed and favoured $B^{\pm}\to DK^{\pm}$ amplitudes is determined to be $r^K_B = 0.097 \pm{0.011}$.
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Cited by 2 Pith papers
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$b\to c \bar u q$ decay and CP violating observables in the presence of new physics contributions
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Phenomenological constraints on complex Wilson coefficients in b→cūq transitions from branching fraction tensions, yielding predictions for ACP, γ, and mixing observables under color-singlet and color-rearranged scenarios.
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$b\to c \bar u q$ decay and CP violating observables in the presence of new physics contributions
hep-ph 2026-05 unverdicted novelty 3.0
Phenomenological constraints on complex Wilson coefficients for b→cūq transitions from branching fraction tensions, yielding predictions for ΔΓd/Γd, ASL^d and ACP under color-singlet and color-rearranged scenarios.
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