EXKALIBUR: Towards a Kaonic Atoms Periodic Table to Test Fundamental Interactions
- Autori: Manti, S.; Abbene, L.; Artibani, F.; Bazzi, M.; Borghi, G.; Bosnar, D.; Bragadireanu, M.; Buttacavoli, A.; Carminati, M.; Clozza, F.; Clozza, A.; De Paolis, L.; Del Grande, R.; Dulski, K.; Fabbietti, L.; Fiorini, C.; Friscic, I.; Iliescu, M.; Indelicato, P.; Iwasaki, M.; Khreptak, A.; Marton, J.; Moskal, P.; Ohnishi, H.; Pischicchia, K.; Principato, F.; Scordo, A.; Sgaramella, F.; Silarski, M.; Sirgh, D.; Sirghi, F.; Skurzok, M.; Spallone, A.; Toho, K.; Toscano, L.; Vazquez Doce, O.; Curceanu, C.
- Anno di pubblicazione: 2025
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/698364
Abstract
Kaonic atoms, formed when a negatively charged kaon replaces an electron, provide a unique laboratory to test fundamental interactions at low energies. EXKALIBUR (EXtensive Kaonic Atoms research: from LIthium and Beryllium to URanium) is a program to perform systematic, high-precision X-ray spectroscopy of selected kaonic atoms across the periodic table at the DAΦNE accelerator at the National Laboratory of Frascati. Here, we outline its detector-driven strategy: silicon drift detectors for 10 40 keV transitions in light targets (Li, Be, B, O), CdZnTe detectors for 40 300 keV lines in intermediate-Z systems (Mg, Al, Si, S), and a high-purity germanium detector for high-Z atoms (Se, Zr, Ta, Mo, W, Pb), complemented by VOXES, a high-resolution crystal spectrometer for sub-eV studies. EXKALIBUR plans to (i) reduce the charged-kaon mass uncertainty below 10 keV, (ii) produce a database of nuclear shifts and widths to constrain multi-nucleon K−-nucleus interactions models, and (iii) provide precision data for testing bound-state quantum electrodynamics in strong elds. We summarize the planned measurements and expected sensitivities within DAΦNE luminosities.