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Results from the kaonic hydrogen X-ray measurement at DAFNE and outlook to future experiments |
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| Authors: | Michael Cargnelli M Bazzi G Beer C Berucci L Bombelli A M Bragadireanu A Clozza G Corradi C Curceanu A d’Uffizi C Fiorini F Ghio B Girolami C Guaraldo R S Hayano M Iliescu T Ishiwatari M Iwasaki P Kienle P Levi Sandri V Lucherini J Marton S Okada D Pietreanu K Piscicchia M Poli Lener T Ponta R Quaglia A Rizzo A Romero Vidal E Sbardella A Scordo H Shi D L Sirghi F Sirghi H Tatsuno A Tudorache V Tudorache O Vazquez Doce E Widmann J Zmeskal |
| Institution: | 1. Stefan-Meyer-Institut für subatomare Physik, Vienna, Austria 2. INFN, Laboratori Nazionali di Frascati, Frascati, Roma, Italy 3. Department of Physics and Astro., University of Victoria, Victoria, BC, Canada 4. Politechno di Milano, Sez. di Elettronica, Milano, Italy 5. IFIN-HH, Magurele, Bucharest, Romania 6. INFN Sez. di Roma I and Inst. Superiore di Sanita, Roma, Italy 7. University of Tokyo, Tokyo, Japan 8. RIKEN, The Institute of Phys. and Chem. Research, Saitama, Japan 9. Physik Dep., Tech. Univ. München, Garching, Germany |
| Abstract: | The $\overline{K}N$ system at rest plays a key role for the understanding of strong interaction of hadrons with strangeness involved. The experiment SIDDHARTA used X-ray spectroscopy of kaonic atoms to measure the strong interaction induced shift and width of the ground state. It was the first experiment on kaonic He3 and deuterium ever, kaonic hydrogen was measured with improved precision resulting in $\epsilon_{1s} = -283 \pm 36 \mbox{(stat)} \pm 6 \mbox{(syst)}$ eV and $\Gamma_{1s} = 541 \pm 89 \mbox{(stat)} \pm 22 \mbox{(syst)}$ eV. Additionally a scheme for an improved future experiment on kaonic deuterium is introduced in this contribution. |
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