SIDDHARTA-2 — The apparatus
The SIDDHARTA-2 experimental apparatus was installed at the Interaction Point (IP) of the DAΦNE e+e– collider, located at National Laboratories of Frascati (INFN-LNF), in Italy. The installation started in 2019. The apparatus was installed with the aim to measure the 2p → 1s transition in kaonic deuterium. During the optimization phase of the collider in 2021 and 2022, data were collected both with a reduced setup called SIDDHARTINO, which differs in the number of used SDD arrays, and with the full SIDDHARTA-2 setup. A schematic view and pictures of the full SIDDHARTA-2 apparatus presently installed are shown below.
