Possibility of experimental determination of the Weinberg angle in the conversion channel of the. mu. /sup -/ muonic-atom 2s. -->. 1s transition
Journal Article
·
· Sov. Phys. - JETP (Engl. Transl.); (United States)
OSTI ID:5732324
We discuss the question of the accuracy with which it is possible to measure the parameter of the standard model of the electroweak interaction sin/sup 2/ theta/sub W/, where theta/sub W/ is the Weinberg angle, in an experiment on observation of the P-odd anisotropy ..cap alpha../sub e/, due to mixing of the muon-atom states Vertical Bar2s> and Vertical Bar2p> by the weak neutral interaction of the muon and the nucleus, of the angular distribution w(theta) = 1+..cap alpha../sub e/costheta of the conversion electrons of the 2s ..-->.. 1s muonic transition in light ..mu../sup -/ muonic atoms. For isolated muonic atoms of the region ..mu..He--..mu..Sc we have estimated the intensities of the various accompanying background processes which hinder the theoretical interpretation of the value of ..cap alpha../sub e/. According to the estimates, at the present time the muonic atoms which are most promising for determination of sin/sup 2/theta/sub W/ with an accuracy scale of a few percent are ..mu../sup 6/Li, ..mu../sup 7/Li, and ..mu../sup 9/Be.
- Research Organization:
- I. V. Kurchatov Institute of Atomic Energy
- OSTI ID:
- 5732324
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 62:4; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640303* -- Atomic
Molecular & Chemical Physics-- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ALKALI METALS
ALKALINE EARTH METALS
ANGULAR DISTRIBUTION
ANISOTROPY
ATOMS
BERYLLIUM
CONVERSION
DECAY
DISTRIBUTION
ELEMENTS
INTERNAL CONVERSION
LITHIUM
MATHEMATICAL MODELS
METALS
MUONIC ATOMS
PARTICLE MODELS
STANDARD MODEL
UNIFIED GAUGE MODELS
WEINBERG ANGLE
Molecular & Chemical Physics-- Positronium
Muonium
& Muonic & Mesic Atoms & Molecules
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
74 ATOMIC AND MOLECULAR PHYSICS
ACCURACY
ALKALI METALS
ALKALINE EARTH METALS
ANGULAR DISTRIBUTION
ANISOTROPY
ATOMS
BERYLLIUM
CONVERSION
DECAY
DISTRIBUTION
ELEMENTS
INTERNAL CONVERSION
LITHIUM
MATHEMATICAL MODELS
METALS
MUONIC ATOMS
PARTICLE MODELS
STANDARD MODEL
UNIFIED GAUGE MODELS
WEINBERG ANGLE