A New Silicon Drift Detector System for Kaonic Atom Measurements

The kaonic deuteriummeasurement at J-PARCand DAΦNE will provide a piece of information still missing to the antikaon-nucleon interaction close to threshold, providing valuable information to answer one of the most fundamental problems in hadronphysics today - to the yet unsolved puzzle of how the hadronmass is generated. For this a new X-ray detectorsystem has been developed to measure the shift and width of the 2p → 1s transition of kaonic deuteriumwith a precision of 60 eV and 140 eV, respectively.