Is There Still a B -> pi K Puzzle?
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We perform a fit to the 2006 B -> pi K data and show that there is a disagreement with the standard model. That is, the B -> pi K puzzle is still present. In fact, it has gotten worse than in earlier years. Assuming that one new-physics (NP) operator dominates, we show that a good fit is obtained only when the electroweak penguin amplitude is modified. The NP amplitude must be sizeable, with a large weak phase.
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Forward citations
Cited by 2 Pith papers
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Isospin-based EWP-tree Relations
Derives SU(2)_I-based EWP-tree relations for B→PP decays that match SU(3)_F in ΔS=0 but differ in ΔS=1, producing a 4-5σ SM discrepancy in the B→πK puzzle.
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Precision measurement of CP violation and branching fractions in $B^{\pm} \to K^0_{\mathrm{S}} h^{\pm}$ $(h = \pi, K)$ decays and search for the rare decay $B_c^{\pm} \to K^0_{\mathrm{S}} K^{\pm}$
Most precise CP asymmetry and branching ratio measurements for B± → K0S h± decays with no significant signal observed for the rare Bc decay.
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