Violation in B ± → γπ ± π + π −
نویسندگان
چکیده
We consider CP violating effects in decays of the type B ± → γa ± 1,2 where a 1,2 are the J P = 1 + and 2 + resonances each decaying to the common final state via a ± 1,2 → π ± ρ 0. The resonances enhance the CP asymmetries and also knowledge of their masses and widths facilitates calculations of the effects. Several types of CP asymmetries are sizable (∼ 10–30%) requiring about (3–10) × 10 8 B ± mesons for detection at the 3σ level thereby providing a method for measuring the angle α in the unitarity triangle.
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