A342486 Decimal expansion of number of kilograms (kg) in the mass equivalent of 1 electronvolt (eV/c^2).

1, 7, 8, 2, 6, 6, 1, 9, 2, 1, 6, 2, 7, 8, 9, 7, 7, 0, 3, 1, 8, 1, 0, 4, 0, 7, 6, 1, 8, 9, 3, 3, 6, 2, 9, 6, 9, 9, 5, 2, 1, 2, 4, 5, 6, 4, 9, 1, 2, 9, 2, 0, 7, 7, 4, 3, 9, 8, 9, 5, 9, 7, 4, 5, 9, 6, 5, 8, 6, 5, 3, 1, 3, 2, 3, 7, 0, 9, 5, 5, 8, 5, 7, 1, 5, 5, 3, 7, 8, 4, 1, 4, 7, 2, 8, 4, 1, 7, 8, 0

Offset

-35,2

Comments

A widely-used unit of mass in particle physics.

Since 1 eV/c^2 is too small, MeV/c^2 and GeV/c^2 are more common.

Period 395732340201618.

Links

Table of n, a(n) for n=-35..64.

Wikipedia, Electronvolt

Formula

Equals A081823 / A003678^2.

Example

1 eV/c^2 = (1.602176634 * 10^(-19))/299792458^2 kg = 1.7826619... * 10^(-36) kg, an order of magnitude larger than the total mass of the three neutrinos;
1 MeV/c^2 = 1.7826619... * 10^(-30) kg, about 1.96 times of the mass of an electron;
1 GeV/c^2 = 1.7826619... * 10^(-27) kg, about 1.07 times of the mass of a proton.

Prog

(PARI) default(realprecision, 100); (1.602176634 * 10^-19) / 299792458^2

Crossrefs

Conversions between units:

A081823 (electronvolt to joule);

A213611 (the standard atmosphere to pascal);

A213612 (Julian year to second);

A213613 (Gregorian year to second);

A213614 (light-year to meter);

A321218 (Torr to pascal);

A321984 (ounce to kilogram);

A342484 (pound-force to newton);

this sequence (the mass equivalent of electronvolt to kilogram).

Sequence in context: A021565 A343617 A011103 * A245758 A266566 A309523

Adjacent sequences: A342483 A342484 A342485 * A342487 A342488 A342489

Keyword

nonn,cons,easy

Author

Jianing Song, Mar 13 2021

Status

approved