ar X iv : h ep - p h / 00 09 02 3 v 1 4 S ep 2 00 0 1 Isospin symmetry breaking and direct CP violation in B →
نویسنده
چکیده
We discuss the isospin symmetry breaking quantity ∆ ±0 ≡ Γ(B ± → ρ ± γ)/2Γ(B 0 → ρ 0 γ)−1, and the direct CP violation in B ± → ρ ± γ within and beyond the standard model. After showing that the leading-order calculation would be a good approximation in such models, we argue that measurements of these quantities would be able to disentagle physics beyond the standard model.
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