Question

a luminosity of 5 inverse femtobarns?!
@Mathematics

Answer 1

how many inverse sheds/outhouses is that

Answer 2

that sounds made up . are you doing a joke

Answer 3

CMS experiment at CERN has reported this data,
it is a measure of collisions

Answer 4

an outhouse is where you take a dump , is it not?

Answer 5

ha ha , http://en.wikipedia.org/wiki/Barn_%28unit%29

Answer 6

so whats the whole question in its entirety. do not omit anything or you will be punished severely

Answer 7

whats the question , im missing something here

Answer 8

whats an inverse femtobarn, the inverse part ?

Answer 9

The "inverse femtobarn" (fb−1) is a measurement of particle collision events per femtobarn. One inverse femtobarn is equal to around 70 million million (70 x 1012) collisions

Answer 10

70*10^12 collisions , so if you want 5 femtobarns, you have 5*70*10^12 particle collision events per femtobarn

Answer 11

A barn is the unit used by nuclear physicist for the size of an atomic nucleus of uranium.

The cross-sectional area of a uranium nucleus is about 10 -24 square centimeters, small on the human scale, but large compared with other atomic nuclei. "Femto" means a factor of 10-15: a thousandth of a millionth of a millionth. A femtobarn, then, is 10-39 square centimeters ­ an incomprehensibly small unit of area.

Answer 12

ill pose the question:
How many inverse outhouses are equivalent to 5 inverse femtobarns

Answer 13

ok whats an outhouse

Answer 14

an outhouse is 10^-34 m^2

Answer 15

a femtobarn is 10^-43

Answer 16

right,

so 1 outhouse 1x10^9 = 1 femtobarn?

Answer 17

10^9 femtobarns = 1 outhouse

Answer 18

you got it the wrong way

Answer 19

no i didnt , an outhouse is bigger than a femtobarn

Answer 20

so 10^9 * 1 femtobarn = 1 outhouse

Answer 21

a femtobarn is 10^-43 which is nine orders of magnitude smaller than an outhouse

Answer 22

so an outhouse is larger than a femtobarn

Answer 23

yes it is , by nine orders of magntidue

Answer 24

magnitude*

Answer 25

an outhouse is a 'micro' barn, if that helps. and femto barn , is femto

Answer 26

micro means 10^-6 of something, like a micro meter is 10^-6 meter.
so if outhouse = microbarn, then it is 10^-6 of a barn

Answer 27

outhouse = microbarn = 10^-6 *10^-28 = 10^-34

Answer 28

good

Answer 29

interesting pic

Answer 30

ay?
<====that pic?

Answer 31

yep

Answer 32

well i find it interesting that you find it interesting

Answer 33

yes , are you stoned there

Answer 34

hehe

Answer 35

what class is this femtobarn business

Answer 36

this question is not from a class,
i am trying to comprehend the latest result from the CMS experiment at CERN (European Organization for Nuclear Research)