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.
@article{arxiv.hep-ph/0701181,
title = {Is There Still a B -> pi K Puzzle?},
author = {Seungwon Baek and David London},
journal= {arXiv preprint arXiv:hep-ph/0701181},
year = {2008}
}
Comments
4 pages, revtex, no figures. References changed; analysis and conclusions unaltered