Measurements of the angle α ( φ 2 ) at B factories
نویسنده
چکیده
into play the two elements of the CKM matrix which are non real at lowest order: Vub, involved in decays proceeding via a b to u transtion, whose phase is −γ, and Vtd, involved in B B̄ mixing, whose phase is −β. So α = π− β− γ can be measured from CP violating asymmetries in the interference between mixing and decay in charmless decays of the neutral B mesons, such as B → ππ, B → ρρ, B → πππ, and B → a1 π.
منابع مشابه
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تاریخ انتشار 2008