Theory of the Lamb shift in muonic helium ions

• Published in: Journal of experimental and theoretical physics Vol. 120; no. 1; pp. 73 - 90
• Main Authors: Krutov, A. A., Martynenko, A. P., Martynenko, G. A., Faustov, R. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-01-2015; Springer
• Subjects: Astrophysics; ATOMIC AND MOLECULAR PHYSICS; Classical and Quantum Gravitation; COMPARATIVE EVALUATIONS; CORRECTIONS; Elementary Particles; Fields; Gravitation; HELIUM 4; HELIUM IONS; LAMB SHIFT; MEV RANGE; MUONIC ATOMS; Nuclei; Particle and Nuclear Physics; Particles; Physics; Physics and Astronomy; POLARIZATION; Quantum Field Theory; RECOILS; Relativity Theory; Solid State Physics; VACUUM POLARIZATION; Charge Radius; Nuclear Structure; Loop Contribution; Vacuum Polarization; Lamb Shift
• ISSN: 1063-7761; 1090-6509
• DOI: 10.1134/S1063776115010033

The Lamb shift (2
P
1/2
-2
S
1/2
) in muonic helium ions (μ
2
3
)
+
, (μ
2/4
He)
+
is calculated taking into account the contributions of the order of α
3
, α
4
, α
5
, and α
6
. Special attention is paid to corrections for the polarization of the vacuum, as well as the structure and recoil of the nucleus. Numerical values 1259.8583 meV ((μ
2
3
He)
+
) and 1379.1107 meV ((μ
2
4
He)
+
) obtained for the shifts can be considered reliable estimates when compared to the experimental data of the CREMA collaboration.