Encyclopedia > Barn (unit)

Article Content

Barn (unit)

A barn is a unit of area, equal to 10^-28 m²[?]. Although not an official SI unit, it is widely used by nuclear physicists as it is considered to be "as big as a barn" compared to the typical cross sections for nuclear reactions[?].

External links

IUPAC citation for this usage of "barn" (http://www.iupac.org/goldbook/B00598.pdf)
http://www-ed.fnal.gov/painless/htmls/cross

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

Brazil

... Main article: Geography of Brazil Brazil is characterised by the extensive low-lying Amazon Rainforest in the north, and a more open terrain of hills and (low) ...