Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9851189 | Nuclear Physics A | 2005 | 6 Pages |
Abstract
The goal of the DEAR (DAΦNE exotic atom research) experiment is the precise determination of the isospin dependent antikaon-nucleon scattering lengths. The experiment accurately measures the Kα line shift and broadening, due to the strong interaction, in kaonic hydrogen and, for the first time, in kaonic deuterium. A precision measurement of kaonic hydrogen tests chiral symmetry breaking in systems with strangeness. An initial analysis of the DEAR experiment yields a shift É1s=â195±45eV and a width Î1s=250±125eV, which is more precise than the previous kaonic X-ray experiment KpX at KEK, and allows for the first time to disentangle the full pattern of the kaonic hydrogen K-series line Kα, Kβ and Kγ.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
J. Zmeskal, G. Beer, A.M. Bragadirean, M. Cargnelli, C. Curceanu (Petrascu), J.-P. Egger, H. Fuhrmann, C. Guaraldo, M. Iliescu, T. Ishiwatari, K. Itahashi, M. Iwasaki, P. Kienle, B. Lauss, V. Lucherini, L. Ludhova, J. Marton, F. Mulhauser, F. Sirghi,