Eur. Phys. J. C 70, 921-925 (2010)
https://doi.org/10.1140/epjc/s10052-010-1496-y

Power corrections in e ⁺ e ⁻→π ⁺ π ⁻,K ⁺ K ⁻ and B→Kπ,ππ

¹ Department of Physics, University of Cincinnati, Cincinnati, OH, 45221, USA
² Department of Physics and Astronomy, University of Mississippi, University, MS, 38677, USA

kaganalexander@gmail.com

Received: 6 October 2010
Published online: 20 November 2010

Abstract

CLEO-c measurements of the timelike form factors F _π , F _K at  GeV provide a direct probe of power corrections (PC’s) at energies near m _B . PC’s in F _π,K and B→Kπ,ππ are separated into perturbative and soft parts. In F _π,K the latter are ≥O(10) larger. A PC fit to the B→Kπ,ππ data also yields a ≥O(10) soft-to-perturbative hierarchy for the QCD penguin PC’s. Hence, both can be attributed to dominance of the soft-overlap between energetic (approximately) back-to-back collinear partons, and consistency of the B→Kπ,ππ fit with the Standard Model appears to be naturally realized. The CP asymmetries , are well determined, providing a clean test for new physics.