Author/Authors :
Bazzi، نويسنده , , M. and Beer، نويسنده , , G. and Bombelli، نويسنده , , L. and Bragadireanu، نويسنده , , A.M. and Cargnelli، نويسنده , , M. G. Corradi، نويسنده , , G. and Curceanu (Petrascu)، نويسنده , , C. and d’Uffizi، نويسنده , , A. and Fiorini، نويسنده , , C. and Frizzi، نويسنده , , William T. and Ghio، نويسنده , , F. and Girolami، نويسنده , , B. and Guaraldo، نويسنده , , C. and Hayano، نويسنده , , R.S. and Iliescu، نويسنده , , M. an، نويسنده ,
Abstract :
Large-area silicon drift detectors (SDDs) were used for the first time in the background condition of a collider for precision spectroscopy of the kaonic atom X-rays in the SIDDHARTA experiment for the study of the strong interaction in a low-energy regime. The measurements were performed at the DA Φ NE electron–positron collider (LNF, Italy), using gas targets of hydrogen, deuterium, helium-3, and helium-4. A test measurement using the kaonic 4He X-rays showed an excellent performance of the SDD devices under the beam conditions, and a good background suppression capability using the time correlation between the kaonic atom X-rays and the back-to-back correlated K+K− pairs produced by φ decays.
