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A barn (symbol: b) is a non-SI metric unit of area equal to 10−28 m2 (100 fm2). This corresponds to the area of a square with side 10−14 m (10 fm) or a circle of diameter approximately 1.128×10−14 m (11.28 fm).
Measurement, Inverse femtobarn & Etymology
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unit area barn fb luminosity also si used inverse femtobarn 10 28 particle 100 square lhc one cross nuclear physics
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Barn (unit) | Named after | the broad side of a barn | 1.00 | infobox |
| Barn (unit) | SI base units | 10−28 m2 | 1.00 | infobox |
| Barn (unit) | square fm | 100 fm2 | 1.00 | infobox |
| Barn (unit) | Symbol | b | 1.00 | infobox |
| Barn (unit) | Unit of | area | 1.00 | infobox |
| the square femtometer | instance of | one can use a unit | 0.80 | text |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.