Precision test of bound-state QED at intermediate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>Z</mml:mi> </mml:math> with kaonic neon
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 <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:mrow> <a:mi>DA</a:mi> <a:mi mathvariant="normal">Φ</a:mi> <a:mi>NE</a:mi> </a:mrow> </a:math> of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"> <c:mrow> <c:mn>9450.23</c:mn> <c:mo>±</c:mo> <c:mn>0.37</c:mn> <c:mspace width="0.16em"/> <c:mo>(</c:mo> <c:mi>stat</c:mi> <c:mo>.</c:mo> <c:mo>)</c:mo> <c:mo>±</c:mo> <c:mn>1.50</c:mn> <c:mspace width="0.16em"/> <c:mo>(</c:mo> <c:mi>syst</c:mi> <c:mo>.</c:mo> <c:mo>)</c:mo> <c:mspace width="0.16em"/> <c:mi>eV</c:mi> </c:mrow> </c:math> . 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.
Authors
- M. Skurzok (ORCID: https://orcid.org/0000-0002-4794-5154)
- Hiroaki Ohnishi (ORCID: https://orcid.org/0000-0001-9427-1984)
- Johann Marton (ORCID: https://orcid.org/0000-0001-5139-7720)
- A. Spallone
- Antonino Buttacavoli (ORCID: https://orcid.org/0000-0002-7188-3651)
- A. Clozza (ORCID: https://orcid.org/0000-0003-2133-1725)
- F. Principato (ORCID: https://orcid.org/0000-0003-2787-0877)
- M. Silarski (ORCID: https://orcid.org/0000-0003-2206-0963)
- M. Iwasaki (ORCID: https://orcid.org/0000-0002-3460-9469)
- Ivica Friščić (ORCID: https://orcid.org/0000-0002-4743-0572)
- G. Borghi
- L. Abbene (ORCID: https://orcid.org/0000-0001-9633-6606)
- Jonas Sommerfeldt (ORCID: https://orcid.org/0000-0002-3471-7494)
- A. Khreptak (ORCID: https://orcid.org/0000-0002-9482-9770)
- Kairo Toho
- Florin Catalin Sirghi (ORCID: https://orcid.org/0000-0002-6143-3200)
- K. Dulski (ORCID: https://orcid.org/0000-0002-4093-8162)
- L. Marx
- Lorenzo Toscano
- F. Clozza (ORCID: https://orcid.org/0009-0002-3298-0624)
- F. Artibani (ORCID: https://orcid.org/0009-0000-8905-3165)
- Kristian Piscicchia (ORCID: https://orcid.org/0000-0003-2242-3568)
- Paweł Moskal (ORCID: https://orcid.org/0000-0001-5644-5963)
- Johann Zmeskal (ORCID: https://orcid.org/0000-0003-0815-0639)
- Mario Bragadireanu
- Alessadro Scordo
- Paul Indelicato
- Anonymous
- O. Vazquez Doce
- M. Bazzi
- C. Fiorini
- C. Guaraldo
- J. Zmeskal
- F. Sgaramella
- D. Bosnar
- R. Del Grande
- D. Sirghi
- M. Carminati
- L. De Paolis
- M. A. Iliescu
Institutions
- University of Rome Tor Vergata (IT)
- Roma Tre University (IT)
- Jagiellonian University (PL)
- TU Wien (AT)
- University of Zagreb (HR)
- Tohoku University (JP)
- Laboratoire Kastler Brossel (FR)
- Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (RO)
- Centro Ricerche Enrico Fermi (IT)
- RIKEN (JP)
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano (IT)
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati (IT)
- Stefan Meyer Institute for Subatomic Physics (AT)
- Czech Technical University in Prague (CZ)
- Politecnico di Milano (IT)
Publication Details
- Journal
- Physical review. A/Physical review, A
- Published
- 2026-01-30
- DOI
- https://doi.org/10.1103/rry5-tdqb
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Strong
- Austrian Science Fund
- Hrvatska Zaklada za Znanost
- Infrastruktura PL-Grid
- Narodowa Agencja Wymiany Akademickiej
- Japan Society for the Promotion of Science
- Academic Computer Centre Cyfronet, AGH University of Science and Technology