Speaker
Description
The X-ray measurements of kaonic atoms play an important role for
understanding the low-energy QCD in the strangeness sector. The energy shift
and broadening of the lowest-lying states of
such atoms, induced by the kaon-nucleus strong interaction, can be
determined with high precision from atomic X-ray spectroscopy.
Significant achievements have been obtained by the SIDDHARTA experiment at
the DAFNE electron-positron collider of LNF-INFN, among which: the most
precise kaonic hydrogen measurement of the 1s level shift and width to date,
fundamental information for the low-energy Kp interaction in theoretical
studies; an upper limit of the X-ray yield of kaonic deuterium, important
information for future Kd experiments.
Using the experience gained with SIDDHARTA experiment, new X-ray studies
focused on kaonic deuterium are in preparation in the framework of the
SIDDHARTA-2 experiment, with the goal to determine the isospin dependent
scattering lengths, which is only possible by combining the Kp and the
upcoming Kd results. This experimental method provides unique information to
understand the low energy kaon-nucleus interaction at threshold.
| Track | Upgrades and new experiments |
|---|---|
| Collaboration name | SIDDHARTA-2 Collaboration |
