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Results on the measurement ofK-series X-rays from antiprotonic hydrogen |
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| Authors: | M. Izycki G. Backenstoss L. Tauscher P. Blüm R. Guigas N. Hassler H. Koch H. Poth B. Emmoth K. Fransson A. Nilsson P. Pavlopoulos K. Zioutas |
| Affiliation: | 1. Institut für Physik der Universit?t, Basel, Switzerland 3. Institut für Kernphysik, Kernforschungszentrum und Universit?t Karlsruhe, Karlsruhe, Federal Republic of Germany 4. Research Institute of Physics, Stockholm, Sweden 5. CERN, Geneva, Switzerland |
| Abstract: | The X-ray spectrum emerging from a liquid-hydrogen target when stopping antiprotons was measured with high resolution in order to determine the strong interaction shift and width of the atomic 1s level. Owing to strong Stark quenching only weak structures could be observed. The upper limit of the yield of any one of theK-series transitions is 3.5×10?4 (95% C.L.) per stopped antiproton, assuming no broadening of the 1s level. Possible identifications of the weak lines with theK-series transitions are discussed. |
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