2003/10/31 by Michael D. Scadron, MICHAEL D. SCADRON, George Rupp +3 · 2 citations
Computer Science · Physics and Astronomy · #Asymmetry #Branching fraction #CP violation #Computational Physics and Python Applications #Context (archaeology) #Particle physics theoretical and experimental studies #Physics beyond the Standard Model #Quantum Chromodynamics and Particle Interactions #Quark #Radiative transfer #Strong CP problem #hep-ph
paper · pdf · doi:10.1142/s0217732304015567
published in Modern Physics Letters A 19(30), 2267-2278 (World Scientific) · Plain LaTeX, 12 pages, 4 EPS figures. PACS numbers: 11.30.Er, 12.15.Lk, 13.20.Eb, 13.40.Ks. Version 2: 14 pages, improved presentation, introductory and concluding remarks as well as references added; accepted for publication in Mod. Phys. Lett. A (2004)
arxiv created 2004/08/14 · openalex publication_date 2004/09/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Data indicate that ΔI=3/2 transitions account for 4.5–4.7% of both CP conserving and CP violating K→2π decays, as well as CP conserving radiative K→ππγ processes. Observed K→ππγ/ππ branching ratios are shown to scale near α/π or α/2π. The K L –K S mixing angle ϕ and the semileptonic weak-rate asymmetry δ are reviewed, and theory is shown to be consistent with data. Also, K→2π ΔI=1/2 dominance is studied in the context of the chiral constituent quark model, displaying again excellent agreement with data. Finally, indirect and direct kaon CP violation (CPV) are successfully described in the framework of photon-mediated quark-loop graphs. This suggests that kaon CPV can be understood via second-order weak transitions, radiatively corrected.