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arxiv: hep-ph/0412086 · v2 · submitted 2004-12-06 · ✦ hep-ph · hep-ex

The B -> pi K Puzzle and New Physics

Seungwon Baek , Philippe Hamel , David London , Alakabha Datta , Denis A. Suprun This is my paper
classification ✦ hep-ph hep-ex
keywords dataphysicsableaccommodatedadoptinganalysisclassesconfirm
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The present B -> pi K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B -> pi K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B -> pi K data can be accommodated by NP in the electroweak penguin sector.

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  1. Isospin-based EWP-tree Relations

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    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.