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Title: Theory of hyperfine anomalies in muonic atoms

Abstract

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.

Authors:
; ; ;
Publication Date:
Research Org.:
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., Upton, NY (USA)
OSTI Identifier:
5837390
Report Number(s):
BNL-33379; CONF-830455-8
ON: DE83015392
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Technical Report
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
Subject:
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

Citation Formats

Freeman, A J, Mallow, J V, Desclaux, J P, and Weinert, M. Theory of hyperfine anomalies in muonic atoms. United States: N. p., 1983. Web. doi:10.2172/5837390.
Freeman, A J, Mallow, J V, Desclaux, J P, & Weinert, M. Theory of hyperfine anomalies in muonic atoms. United States. https://doi.org/10.2172/5837390
Freeman, A J, Mallow, J V, Desclaux, J P, and Weinert, M. Sat . "Theory of hyperfine anomalies in muonic atoms". United States. https://doi.org/10.2172/5837390. https://www.osti.gov/servlets/purl/5837390.
@article{osti_5837390,
title = {Theory of hyperfine anomalies in muonic atoms},
author = {Freeman, A J and Mallow, J V and Desclaux, J P and Weinert, M},
abstractNote = {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.},
doi = {10.2172/5837390},
url = {https://www.osti.gov/biblio/5837390}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}