1997/04/21 by M. Iwasaki, R. Hayano, T. M. Ito +15 · 17 citations
Physics and Astronomy · Chemistry · #Quantum Chromodynamics and Particle Interactions #Particle physics theoretical and experimental studies #High-Energy Particle Collisions Research #Energy (signal processing) #Physics #Atomic physics #Crystallography #Quantum mechanics #Chemistry
paper · doi:10.1103/physrevlett.78.3067
openalex publication_date 1997/04/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/23
We have measured the shift and width of the kaonic hydrogen 1s state due to the KN strong interaction. We have observed, for the first time, distinct K-series kaonic hydrogen x rays with good signal-to-noise ratio in the energy spectrum. The measured energy shift and width were determined to be \ensuremathΔE(1s)\phantom\rule0ex0ex=\phantom\rule0ex0ex\ensuremath-323\ifmmode±\else\textpm\fi63(stat)\ifmmode±\else\textpm\fi11(syst)eV (repulsive) and \ensuremathγ(1s)\phantom\rule0ex0ex=\phantom\rule0ex0ex407\ifmmode±\else\textpm\fi208(stat)\ifmmode±\else\textpm\fi100(syst)eV, respectively.