2002/05/17 by H. C. Huang, Hsuan‐Cheng Huang, Huang, H. C. · 1 citation
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Superconducting Materials and Applications #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/0205062
8 pages, 6 figures, proceedings of the XXXVII Rencontres de Moriond on Electroweak Interactions and Unified Theories, Les Arcs, France, 9-16 March 2002
arxiv created 2002/05/17 · openalex publication_date 2002/05/17 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Recent results of rare B decay analyses based on 31.9 million BB collected with the Belle detector at the KEKB asymmetric e+e- collider are presented. We have made the first observation of charmless baryonic decay B^± → p p K^±, the three-body B0 → K0 π+ π- and B0 → K0 K+ K-. The measured branching fractions are B(B+→ p p K+) = (4.3+1.1-0.9 ± 0.5)× 10-6, B(B0→K0π+π-) = (\brkspp) × 10-6, and B(B0→K0 K+ K-) = (\brkskk) × 10-6. We also see strong evidence of B^± → ηK^± and B^± → ηπ^±, and observed the decay B^± → ωK^± with B(B^± → ωK^±) = (9.9+2.7-2.4 ± 1.0) × 10-6. Preliminary results of improved measurements of the branching fractions for the decays B → K π and ππ are reported. No evidence for direct CP violation is found in the decays B^± → K^± π^∓, K^± π0, K0 π^±, π^± π0, and ωK^±.