Search: id:A003677
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%I A003677 M4324
%S A003677 1,0,0,7,2,7,6,4,7,0
%N A003677 Decimal expansion of proton mass (mass units).
%C A003677 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 (mathar(AT)strw.leidenuniv.nl), Aug 09 2007
%D A003677 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A003677 J. Borwein and P. Borwein, A Dictionary of Real Numbers, Wadsworth, Pacific 
               Grove, Calif., 1990, p. v.
%D A003677 H. J. Fischbeck and K. Fischbeck, Formulas. Facts and Constants, Springer-Verlag, 
               NY, 2nd ed., 1987.
%H A003677 CODATA, <a href="http://physics.nist.gov/cgi-bin/cuu/Value?mpu|search_for=atomnuc!">
               Proton mass</a>.
%Y A003677 Cf. A005601.
%Y A003677 Sequence in context: A073330 A021583 A096052 this_sequence A010506 A082633 
               A121239
%Y A003677 Adjacent sequences: A003674 A003675 A003676 this_sequence A003678 A003679 
               A003680
%K A003677 cons,nonn,nice,hard
%O A003677 1,4
%A A003677 N. J. A. Sloane (njas(AT)research.att.com), Mira Bernstein

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