Measuring gamma in B -> K pi pi Decays

Understand

We re-examine the question of measuring the weak phase gamma in B -> K pi pi decays.

• To this end, we express all B -> K pi pi amplitudes in terms of diagrams.
• We show that, as in B -> K pi, there exist relations between certain tree and electroweak-penguin diagrams.
• The imposition of these relations allows the extraction of gamma from measurements of the B -> K pi pi observables.