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.
@article{arxiv.hep-ph/0412086,
title = {The B -> pi K Puzzle and New Physics},
author = {Seungwon Baek and Philippe Hamel and David London and Alakabha Datta and Denis A. Suprun},
journal= {arXiv preprint arXiv:hep-ph/0412086},
year = {2009}
}