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- Title
SOLVING THE KAONIC-HELIUM PUZZLE.
- Authors
HAYANO, RYUGO S.; BEER, G.; BHANG, H.; CARGNELLI, M.; CHIBA, J.; CHOI, S.; CURCEANU, C.; FUKUDA, Y.; HANAKI, T.; IIO, M.; ISHIKAWA, T.; ISHIMOTO, S.; ISHIWATARI, T.; ITAHASHI, K.; IWAI, M.; IWASAKI, M.; JUHÁSZ, B.; KIENLE, P.; MARTON, J.; MATSUDA, Y.
- Abstract
We have measured the Balmer-series x-rays of kaonic 4He atoms using large-area silicon drift x-ray detectors (SDDs) in order to study the low-energy $\bar{K}$-nucleus strong interaction. The energy of the 3d → 2p transition was determined to be 6467 ± 3(stat) ± 2(syst) eV. The resulting strong-interaction energy-level shift is in agreement with theoretical calculations, thus eliminating a long-standing discrepancy between theory and experiment.
- Subjects
BALMER formula; KAON spectra; LIQUID helium; X-rays; DETECTORS; MESON-nucleon interactions; ENERGY levels (Quantum mechanics)
- Publication
Modern Physics Letters A, 2008, Vol 23, Issue 27-30, p2505
- ISSN
0217-7323
- Publication type
Article