Obtaining the apex of the unitarity triangle from B-->piK decays.
We present a method of obtaining the apex of the unitarity triangle from measurements of B-->piK decay rates alone. Electroweak penguin amplitudes are included, and are related to tree operators. Discrete ambiguities are removed by comparing solutions with independent experimental data. The theoretical uncertainty in this method is about 10%.
Laboratoire René J.-A. Lévesque, Université de Montréal, Montréal, Quebec, Canada H3C 3J7.
Maxime
M
Imbeault
Alexandre
A
Lemerle
Véronique
V
Pagé
David
D
London