Measurements of Electroweak Penguin Processes b → d,sγ and b → sℓ + ℓ − at Belle M.Iwasaki
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چکیده
We report the measurements of electroweak penguin processes b → d, sγ and b → sℓ + ℓ − at the Belle experiment. The analyses are based on 152 million BB events collected at the Υ(4S) resonance with the Belle detector at the KEKB e + e − asymmetric-energy collider. The b → dγ transition is studied through exclusive decays: B 0 → ρ 0 γ, B 0 → ωγ and B + → ρ + γ. We apply fully inclusive and semi-inclusive reconstruction to b → sγ and b → sℓ + ℓ − processes, respectively. The results on the exclusive b → dγ and semi-inclusive b → sℓ + ℓ − measurements are preliminary.
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