Improving Bounds on Penguin Pollution in B --> pi pi UdeM Preprint ID: UdeM-GPP-TH-01-89 Authors: Michael Gronau , David London , Nita Sinha , Rahul Sinha arXiv: http://xxx.lanl.gov/abs/hep-ph/0105308 Journal Reference: Phys. Lett. B514 (2001) 315-320
