Precision measurements on kaonic hydrogen and kaonic deuterium: present and future

摘要

The DEAR (DANE Exotic Atom Research) experiment performed the most precise measurement ever obtained on the energy of the x rays emitted in the transitions to the ground state of kaonic hydrogen. The results of this measurement are reported in the present paper. The DEAR scientific programme will be continued by the SIDDHARTA (SIlicon Drift Detector for Hadronic Atom Research by Timing Application) experiment.