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A003677 Decimal expansion of proton mass (mass units).
(Formerly M4324)
6
1, 0, 0, 7, 2, 7, 6, 4, 6, 6 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

In the current theory of strong and electroweak interactions, this is not a mathematical constant but an experimental summary of (virtual) quark rests masses plus contributions from gluon (meson) and electroweak (photon, W-Z boson) exchange energies (in the scope of general relativity). [I've changed the last two digits to the current "best" estimates, 7,0->6,7] - R. J. Mathar, Aug 09 2007

REFERENCES

J. Borwein and P. Borwein, A Dictionary of Real Numbers, Wadsworth, Pacific Grove, Calif., 1990, p. v.

H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, NY, 2nd ed., 1987.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

LINKS

Table of n, a(n) for n=1..10.

NIST, CODATA value: proton mass in u

CROSSREFS

Cf. A005601.

Sequence in context: A177437 A242021 A096052 * A301864 A295421 A217172

Adjacent sequences:  A003674 A003675 A003676 * A003678 A003679 A003680

KEYWORD

cons,nonn,nice,hard

AUTHOR

N. J. A. Sloane, Mira Bernstein

EXTENSIONS

Updated by Ivan Panchenko, May 30 2019

STATUS

approved

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Last modified December 13 22:55 EST 2019. Contains 329974 sequences. (Running on oeis4.)