arXiv · 2412.16101
High precision X-ray spectroscopy of kaonic neon
Abstract
The high-precision kaonic neon X-ray transitions measurement performed by the SIDDHARTA-2 collaboration at the DA$\Phi$NE collider is reported. Both the X-ray energies and yields for high-n transitions were measured, demonstrating the feasibility of sub-eV Xray spectroscopy for kaonic atoms using low-Z gaseous targets. The measurement provides valuable insights into the de-excitation processes in kaonic atoms, providing new input data for the refinement of the corresponding theoretical models, and a framework for testing Quantum Electrodynamics in strange exotic atoms.
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F Sgaramella, D Sirghi, K Toho, F Clozza, L Abbene, C Amsler, F Artibani, M Bazzi, G Borghi, D Bosnar, M Bragadireanu, A Buttacavoli, M Cargnelli, M Carminati, A Clozza, R Del Grande, L De Paolis, K Dulski, L Fabbietti, C Fiorini, I Friščić, C Guaraldo, M Iliescu, M Iwasaki, A Khreptak, S Manti, J Marton, P Moskal, F Napolitano, S Niedźwiecki, H Ohnishi, K Piscicchia, F Principato, A Scordo, M Silarski, F Sirghi, M Skurzok, A Spallone, L G Toscano, M Tüchler, O Vazquez Doce, E Widmann, J Zmeskal, C Curceanu. 2024-12-20. High precision X-ray spectroscopy of kaonic neon. https://doi.org/10.1016/j.physletb.2025.139492
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