Precision test of bound-state QED at intermediate Z with kaonic neon

Physical Review A 2026 Open access

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Authors: Simone Manti, F. Sgaramella, L. Abbene, C. Amsler, F. Artibani, M. Bazzi, G. Borghi, D. Bosnar, Mario Bragadireanu, Antonino Buttacavoli, M. Carminati, A. Clozza
+28 more F. Clozza, L. De Paolis, R. Del Grande, K. Dulski, C. Fiorini, I. Friščić, C. Guaraldo, M. A. Iliescu, Paul Indelicato, M. Iwasaki, A. Khreptak, J. Márton, P. Moskal, H. Ohnìshì, Kristian Piscicchia, F. Principato, Alessadro Scordo, M. Silarski, D. Sirghi, F. Sirghi, M. Skurzok, Jonas Sommerfeldt, A. Spallone, Kairo Toho, Lorenzo Toscano, O. Vazquez Doce, J. Zmeskal, C. Curceanu
DOI: 10.1103/rry5-tdqb
Cited by: 2
References: 38

Abstract

We report Dirac-Fock calculations of transition energies for kaonic neon. For the most intense line, the 7–6 transition, the calculated energy is 9450.28 eV, which includes a bound-state quantum electrodynamics (BSQED) contribution of 12.66 eV. This is in excellent agreement with the recent SIDDHARTHA-2 measurement at DA Φ NE of 9450.23 ± 0.37 ( stat . ) ± 1.50 ( syst . ) eV . With the quantum electrodynamics contribution far exceeding experimental uncertainty, these results establish kaonic atoms as sensitive platforms for precision tests of BSQED in intermediate-Z systems.

Fields of Study & Subjects

Quantum Chromodynamics and Particle Interactions Atomic and Molecular Physics Particle physics theoretical and experimental studies

Publication details

Journal / source
Physical Review A
Publisher
American Physical Society (APS)
Volume
113
Issue
2
Publication date
30 January 2026
Language
EN