====== TTP06-18 Tracking down penguins at the poles ======
 
 
   <hidden TTP06-18  Tracking down penguins at the poles > QCD penguins are responsible for about 2/3 of the Delta I=1/2 rule in K to pi pi decays, as inferred from a combined analysis of K to pi pi and KL to gamma gamma. Further tests based on the decays KS to pi0 gamma gamma and K+ to pi+ gamma gamma are proposed. New insights into the treatment of pi0, eta, eta' pole amplitudes are also reported.
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|**Jean-Marc Gerard, Christopher Smith, Stephanie Trine**  | 
| {{preprints:2006:ttp06-18.pdf|PDF}} {{preprints:2006:ttp06-18.ps|PostScript}} [[http://arxiv.org/abs/hep-ph/0605165|arXiv]]   |
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