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K− mass and K− polarizability from kaonic atoms |
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| Authors: | G Backenstoss A Bamberger I Bergström T Bunaciu J Egger R Hagelberg S Hultberg H Koch Y Lynen HG Ritter A Schwitter L Tauscher |
| Institution: | 1. CERN, Geneva, Switzerland;2. Institut für Experimentelle Kernphysik der Universität und des Kernforschungszentrums Karlsruhe, Karlsruhe, Germany;3. Max-Planck-Institut für Kernphysik, Heidelberg, Germany;4. Research Institute for Physics, Stockholm, Sweden |
| Abstract: | The K? mass was determined from kaonic atomic X-rays from Au and Ba to be 493.691 ± 0.040 MeV. An upper limit for the polarizability of the K? was found to be 0.020 fm3 at 90% confidence. |
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