A 1975 least-squares adjustment of values of the fundamental constants. Interim report
After the 1973 report on the fundamental constants by Cohen and Taylor, a new measurement of Avogadro's constant, (N/sub A/), was published by Deslattes et al. Based on improved techniques, the result is considerably more precise than the 1973 value, which was based primarily on other types of data, and is 8.2 ppm (1.6 times the 1973 standard deviation) larger. In the present report, a new least-squares adjustment is made, with six parameters and the measurement of N/sub A/ plus other new data. Recommended values of 75 constants are presented, half of which differ from the former values by 1.0 to 1.5 times the 1973 standard deviation. The uncertainties of the new values are often much less than the 1973 uncertainties, 0.38 as large according to one figure of merit. (GRA)
- Research Organization:
- Naval Research Lab., Washington, D.C. (USA)
- OSTI ID:
- 7140912
- Report Number(s):
- AD-A-021191; NRL-MR-3213
- Country of Publication:
- United States
- Language:
- English
Similar Records
Computerized data base of the fundamental constants of nature
LEAST-SQUARES AND ADJUSTED VALUES OF THE ATOMIC CONSTANTS AS OF NOVEMBER 1952: FUNDAMENTAL RESEARCH IN SPECTROSCOPY OF NUCLEAR ENERGY LEVELS. Special Technical Report 1
Related Subjects
GENERAL PHYSICS
FUNDAMENTAL CONSTANTS
ELECTRONS
LEAST SQUARE FIT
MAGNETIC MOMENTS
MUONS
NUMERICAL ANALYSIS
QUANTUM ELECTRODYNAMICS
STANDARDS
ELECTRODYNAMICS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
LEPTONS
MATHEMATICS
MAXIMUM-LIKELIHOOD FIT
NUMERICAL SOLUTION
QUANTUM FIELD THEORY
657001* - Theoretical Physics- General & Miscellaneous- (-1987)