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A294666
Decimal expansion of the hyperfine transition of neutral hydrogen in Hertz.
1
1, 4, 2, 0, 4, 0, 5, 7, 5, 1, 7, 6
OFFSET
10,2
REFERENCES
Ludwig Bergmann, Clemens Schaefer (edited by Wilhelm Raith), Constituents of Matter: Atoms, Molecules, Nuclei, and Particles, Walter de Gruyter & Co., Berlin, 1997, p. 203.
LINKS
IEEE Transactions on Instrumentation and Measurement, Measurement of the Unperturbed Hydrogen Hyperfine Transition Frequency, vol. IM-19, No. 4 (1970), pp. 200-209.
Wikipedia, Hydrogen line
FORMULA
Equals E * A081823 / A003676, where E is the energy (in eV) emitted after spin-flip transition of atomic hydrogen in its ground electronic state.
EXAMPLE
1420405751.7667 +- 0.0009 Hz.
CROSSREFS
Sequence in context: A182501 A048819 A076114 * A051478 A121829 A021708
KEYWORD
nonn,cons,less
AUTHOR
STATUS
approved