Electron Volt

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Related to Electron Volt: Planck's constant

Electron Volt


a subsidiary unit of energy, equal to the energy acquired by a particle having an elementary charge, oi the charge of an electron, when the particle is moved in an accelerating electric field between two points with a potential difference of 1 volt. The international symbol is eV.

One electron volt equals 1.60219 x 10–19 joule. Multiple units are also used. For example, the kiloelectron volt (keV) equals 103 eV; the megaelectron volt (MeV) equals 106 eV.

The masses of elementary particles are often expressed in electron volts. Such usage is based on the Einstein mass-energy relation E = mc2. The equation relates the mass m of a particle and the particle’s total energy E; c is the speed of light. The energy corresponding to an atomic mass unit is (931.5016 ± 0.0026) MeV.

References in periodicals archive ?
The LHC is capable of collisions at 14 trillion electron volts (TeV), but some of the machine's most extraordinary discoveries could be made at much lower energy levels.
Myers said, but seven trillion electron volts would require "a lot of training.
5 kilometers from each other, will analyze the "air showers" of particles created when a cosmic-ray particle carrying an energy of more than 1019 electron volts strikes an atom in the upper atmosphere.
To fit with the standard model of particle physics, the Higgs must now be lighter than 145 billion electron volts, or GeV, team members from LHC's ATLAS and CMS experiments reported August 22 in Mumbai, India, at the International Symposium on Lepton Photon Interactions at High Energies.
Brighter colors indicate higher numbers of gamma rays at energies above 200 million electron volts.
It will have 50 times better sensitivity than Compton's EGRET imager, an angular resolution of a few arcminutes, and a detection range from 10 million to 1 billion electron volts.
The most plausible explanation for the high energy is that protons bouncing back and forth between the two stellar winds attain energies of at least 10 trillion electron volts.
Washington, Dec 17 (ANI): Scientists in the UK have successfully demonstrated energy recovery on the ALICE advanced particle accelerator design, creating a beam with a total energy of 11 million electron volts.
Swift's Burst Alert Telescope (BAT) will detect "hard" X-rays, those with energies of 10,000 to 150,000 electron volts.
suggesting that the elusive Higgs does not have a mass between 158 billion and 175 billion electron volts.
Washington, Nov 18 (ANI): UK's next-generation particle accelerator, ALICE, has achieved a major milestone by producing a high-energy particle beam with a total energy of nearly four and a half million electron volts.