Measurement of alpha / phi_2 from B to pi pi decays
arXiv:hep-ex/0701031
Abstract
The current results on B to pipi decays and SU2 constraints on the Unitarity Triangle angle alpha or phi_2 from the B-factories are summarised. Based on these measurements, predictions of the isospin analysis constraints at the end of the lifetime of both B-factories are given.
Proceedings to the 4th International Workshop on the CKM Unitarity Triangle (CKM06)