The SIDDHARTA-2 experiment for high precision kaonic atoms X-ray spectroscopy at DAΦNE
- Authors: Sgaramella F.; Abbene L.; Amsler C.; Artibani F.; Bazzi M.; Bosnar D.; Bragadireanu M.; Buttacavoli A.; Cargnelli M.; Carminati M.; Clozza A.; Clozza F.; Deda G.; Del Grande R.; de Paolis L.; Dulski K.; Fabbietti L.; Fiorini C.; Friscic I.; Guaraldo C.; Iliescu M.; Iwasaki M.; Khreptak A.; Manti S.; Marton J.; Moskal P.; Napolitano F.; NiedzWiecki S.; Ohnishi H.; Piscicchia K.; Principato F.; Scordo A.; Silarski M.; Sirghi D.; Sirghi F.; Skurzok M.; Spallone A.; Toho K.; Tuchler M.; Vazquez Doce O.; Zmeskal J.; Curceanu C.
- Publication year: 2024
- Type: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/651813
Abstract
High precision X-ray spectroscopy of light kaonic atoms provides valuable information on kaon-nucleus interaction at threshold, allowing to investigate the strong interaction in the strangeness sector at the low-energy frontier. The SIDDHARTA-2 experiment at the DAΦNE collider of INFN-LNF is performing the challenging measurement of the kaonic deuterium 2p→1 s transition which together with the kaonic hydrogen measurement performed by SIDDHARTA, will allow to extract the isospin-dependent antikaon-nucleon scattering lengths. To achieve this goal, the optimization of the setup to maximize the signal over background ratio is a crucial step. This paper presents the SIDDHARTA-2 experiment and its optimization through the first observation of kaonic neon transitions. The excellent electromagnetic background reduction factor (∼ 104) paves the way not only to the measurement of kaonic deuterium, but also to a new era of selected kaonic atom measurements along the periodic table.