Theory of hyperfine anomalies in muonic atoms

Technical Report · Sat Jan 01 00:00:00 EST 1983

DOI:https://doi.org/10.2172/5837390· OSTI ID:5837390

Freeman, A J; Mallow, J V; Desclaux, J P; Weinert, M

Negative muon spin precession experiments by Yamazaki, et al. have found giant hyperfine anomalies in muonic atoms ranging from a few percent up to 36%. In order to understand their results, we present Breit interaction calculations based on atomic self-consistent unrestricted Dirac-Fock solutions which explicitly include all electrons and the negative muon. The Breit interaction results (including the relativistic correction for the bound muon g-factor), vary from near zero for ..mu../sup -/ O/N to -5% for ..mu../sup -/Pd/Rh; this latter is much larger than the calculated muonic or nuclear Bohr-Weisskopf anomalies and much smaller than the 36% measured value. For ..mu../sup -/Ni/Co we find a calculated range of results (depending on assumed electronic configurations) of -2.3 to -2.7% in excellent agreement with recent measurements of the Yamazaki group. This excellent agreement in ..mu../sup -/Ni/Co provides strong support for the earlier suggestions that the discrepancy in the case of ..mu../sup -/Pd/Rh is due to experimental factors.

• Research Organization: Northwestern Univ., Evanston, IL (USA). Dept. of Physics and Astronomy; Loyola Univ., Chicago, IL (USA). Dept. of Physics; CEA Centre d'Etudes Nucleaires de Grenoble, 38 (France). Dept. de Recherche Fondamentale; Brookhaven National Lab. (BNL), Upton, NY (United States)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5837390
• Report Number(s): BNL-33379; CONF-830455-8; ON: DE83015392
• Resource Relation: Conference: Yamada conference on muon spin rotation and associated problems, Shimoda, Japan, 18 Apr 1983; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
MUONIC ATOMS
HYPERFINE STRUCTURE
NITROGEN
OXYGEN
PALLADIUM
RHENIUM
PRECESSION
SPIN ORIENTATION
THEORETICAL DATA
ATOMS
DATA
ELEMENTS
INFORMATION
METALS
NONMETALS
NUMERICAL DATA
ORIENTATION
PLATINUM METALS
TRANSITION ELEMENTS
640303* - Atomic
Molecular & Chemical Physics- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules