Bound deuteron-antideuteron system (deuteronium): Leading radiative and internal-structure corrections to bound-state energies
Year: 2025
Type: article
Abstract: We evaluate the energy levels of the deuteronium bound system, which consists of a deuteron and an antideuteron, with a special emphasis on states with nonvanishing orbital angular momenta. The excited atomic bound states of deuteronium constitute probes for the understanding of higher-order quantum electrodynamic corrections for spin-1 particles in a bound system where the typical field strength of the binding Coulomb field (at a distance of the generalized Bohr radius) exceeds Schwinger’s critical field strength. For states with nonvanishing angular momenta, effects due to the internal structure of the deuteron and virtual annihilation contributions are highly suppressed. Relevant transitions are found to be in a frequency range accessible by standard laser spectroscopic techniques. We evaluate the leading and next-to-leading energy corrections of orders α 3 m d and α 4 m d , where α is the fine-structure constant and m d is the deuteron mass, and also investigate internal-structure corrections: hadronic vacuum polarization, finite-size effects, and strong-interaction corrections.
Source: Physical Review Research
DOI: 10.1103/zrp8-jx3w
Authors: Gregory S. Adkins, Ulrich D. Jentschura
Language: English
Topic: Atomic and Molecular Physics
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,625
Awards: RUI: Calculation of Higher Order Corrections to Positronium Energy Levels, PURPOSE: THE PURPOSE OF THIS GRANT IS TO ENABLE MORE STRINGENT TESTS OF THE BASIC LAWS OF PHYSICS UNDERLYING METROLOGY, AS WELL AS HIGHER PRECISION IN THE MEASUREMENTS OF FUNDAMENTAL CONSTANTS THAT ARE IMPORTANT FOR CODATA. ACTIVITIES TO BE PERFORMED: THE RESEARCHER PROPOSES TO PERFORM QUANTUM ELECTRODYNAMIC (QED) CALCULATIONS FOR MUONIUM (AN ATOM CONSISTING OF AN ELECTRON ORBITING A MUON) TO COMPUTE THE UNKNOWN RECOIL CORRECTIONS THAT CURRENTLY LIMIT THE ACCURACY FOR THE PREDICTED HYPERFINE SPITTING TO ABOUT 70 HZ, WHICH IS MORE THAN AN ORDER OF MAGNITUDE LARGER THAN THE GOAL OF A NEW EXPERIMENTAL CAMPAIGN UNDERWAY TO REACH 5 HZ.EXPECTED OUTCOMES: SUCCESS IS EXPECTED TO IMPROVE THE PREDICTED VALUE OF THE MUONIUM GROUND STATE HYPERFINE SPLITTING, REDUCING THE UNCERTAINTY TO LESS THAN 10 HZ. TOGETHER WITH THE ANTICIPATED EXPERIMENTAL IMPROVEMENT, THIS CAN BE USED TO OBTAIN A MORE PRECISE DETERMINATION OF THE MUON MASS.INTENDED BENEFICIARIES: INSTITUTIONS OF HIGHER LEARNING WILL BENEFIT FROM PRECISELY TESTING THE BASIC LAWS OF NATURE. METROLOGICAL INSTITUTES WILL BENEFIT FROM THE IMPROVED MEASUREMENTS OF FUNDAMENTAL CONSTANTS THAT ARE INVOLVED IN THE LEAST SQUARES ADJUSTMENTS FOR CODATA RECOMMENDATIONS.SUBRECIPIENT ACTIVITIES: THERE ARE NO SUB-AWARDS IN THIS PROJECT., PM: Precision Low-Energy Quantum Electroynamic Theory and Fundamental Processes, Quantum Electrodynamics and Fundamental Physics
OpenAlex ID: W4417267648