## LHC Glossary

### TeV

A TeV is a unit of energy used in particle physics. 1 TeV is about the energy
of motion of a flying mosquito. What makes the LHC so extraordinary is that it
squeezes energy into a space about a million million times smaller than a
mosquito.

**TeV stands for tera electron Volts.** That is 1,000,000,000,000
electron Volts or 10^{12} electron Volts. [tera - f. Gr.
monster.]

An electron volt is an unit of
energy,
particularly used in
atomic and
nuclear processes. It is the energy given to an electron by accelerating it
through 1
volt of electric potential difference.

The abbreviation for electron volt is eV.
Energies in electron volts

An adult female mosquito weighs only about 2.0 milligrams (about
1/15,000 ounce).

1 eV = 1.6 x 10^{-19} Joules

1 TeV = 1.6 x 10^{-19} x 10^{12} Joules =
1.6 x 10^{-7} Joules

1/2 m v^{2 }= 1.6 x 10^{-7} Joules, m =
2
x 10^{-6} kg therefore v = 0.4 m/s = 1.4 kph

Apparently Mosquitoes can fly about 1 to 1.5 miles per hour.
1 mph = 1.6 kph so our mosquito is a little slow, but
the comparison is a good one.