2000 character limit reached
Results on φ2 from e+e- colliders (1307.7921v1)
Published 30 Jul 2013 in hep-ex and hep-ph
Abstract: We present a summary of measurements sensitive to the CKM angle \phi 2 (\alpha), performed by the BaBar and the Belle experiments which both collect B\bar{B} pairs produced at the \Upsilon(4S) resonance in asymmetric e+e- collisions. We discuss the decays B -> \pi \pi, \rho\rho, a_1\pi and (\rho\pi)0. The CP asymmetries, branching fractions and polarizations obtained are used to constrain \phi 2.
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