2002/05/16 by A. Ishikawa, Akimasa Ishikawa, Ishikawa, Akimasa
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Cancer Genomics and Diagnostics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0205051
6pages, 9 figures; proceedings of the XXXVIIth Recontres de Moriond on Electroweak Interactions and Unified Theories, Les Arcs, France, 9-16 March 2002
arxiv created 2002/05/16 · openalex publication_date 2002/05/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We report on the results of penguin-mediated B decays at the Belle experiment. The analyses were based on approximately 32 million BB events collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e- storage ring. The b → s γ transition was studied through exclusive decays: B → K* γ, B0 → K2*(1430)0 γ, B+ → K+π-π- γ, B+ → K*0 π+ γ and B+ → K+ρ0 γ. The b → s ℓ+ ℓ- transition was searched through both exclusive decays, B → K(*) ℓ+ ℓ-, and inclusive decay, B → Xs ℓ+ ℓ-. We observed the decay processes B+ → K+π+π- γ and B → K ℓ+ ℓ- for the first time.