New precision measurements of the strong interaction in kaonic hydrogen
- Peter Lechner
- A. M. Bragadireanu
- Heike Soltau
- D. Pietreanu
- F. Ghio
- Florin Sirghi
- B. Girolami
- T. Ponta
- Diana Sirghi
- Michael Cargnelli
- M. Bazzi
- Lothar Strüder
- G. A. Beer
- Carlo Fiorini
- C. Guaraldo
- T. Ishiwatari
- M. Iliescu
- Luca Bombelli
- M. Catitti
- Catalina Curceanu
- Eberhard Widmann
- Antonio Francesco Longoni
- Johann Marton
- V. Lucherini
- P. Levi Sandri
- K. Nikolics
- Johann Zmeskal
- O. Vazquez Doce
- P. Kienle
- Tommaso Frizzi
DOIAbstract
The DEAR experiment performed at the DAΦNE electron-positron collider (Frascati, Italy) studied the strong interaction shift and width of the 1s state in kaonic hydrogen using X-ray spectroscopy. The repulsive character of the kaon-proton interaction at threshold was confirmed and the most precise values of the shift and width were obtained. However, high precision data at the percent level are highly requested to further develop the theories and thus our understanding of the low-energy antikaon-nucleon interaction. Therefore, a new series of precision experiments on kaonic hydrogen and kaonic deuterium are planned at LNF
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