2001/11/14 by A. S. Levchenko, A. N. Khotjantsev, A. Ivashkin +31 · 7 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Lambda #Mathematical physics #Monte Carlo method #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pure mathematics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scalar (mathematics) #Statistics #Tensor (intrinsic definition) #hep-ex
paper · pdf · doi:10.1134/1.1530306
published in Physics of Atomic Nuclei 65(12), 2232-2237 (Pleiades Publishing) · 10 pages, 5 figures, contributed to the proceedings of NANP Conference, Dubna, June 19-23, 2001
arxiv created 2001/11/14 · openalex publication_date 2002/12/01 · arxiv updated 2011/01/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The form factors of the decay K + → π 0 e + ν e ( K e 3 ) have been determined from the comparison of the experimental and Monte Carlo Dalitz distributions containing about 10 5 K e 3 events. The following values of the parameters were obtained: λ + =0.0278±0.0017 (stat.)±0.0015 (syst.), | f S / f + (0)|=0.0040±0.0160 (stat.)±0.0067 (syst.), and | f T / f + (0)|=0.019±0.080 (stat.)±0.038 (syst.). Both scalar f S and tensor f T form factors are consistent with the Standard Model predictions of zero values.