2004/09/14 by Martino Trassinelli
Physics and Astronomy · #physics.atom-ph #nucl-ex
published as DAFNE 2004: Physics at meson factories, Italie (2004)
arxiv created 2004/09/14 · arxiv updated 2009/12/01
Preliminary results of the strong interaction shift and width in pionic hydrogen (πH) using an X-ray spectrometer with spherically bent crystals and CCDs as X-ray detector are presented. In the experiment at the Paul Scherrer Institute three different (np→ 1s) transitions in πH were measured. Moreover the pion mass measurement using the (5 → 4) transitions in pionic nitrogen and muonic oxygen is presented