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The process in which a neutron in a nucleus transforms into a proton by emitting an electron and an anti-neutrino is known as beta decay. When two neutrons undergo this transformation simultaneously, the process is called double beta-decay. Of particular interest is the hypothetical process of neutrinoless double beta decay, in which the neutrons transform by emitting two electrons, but no anti-neutrinos.
Industry:Physics
A fundamental constituent of matter. Along with protons and neutrons, electrons are the building blocks of atoms. They have negative electric charge.
Industry:Physics
Although electromagnetism and the weak force have the same strength at high energies, electromagnetism is much stronger than the weak force in our everyday experience. The process by which a single unified electroweak force becomes two separate forces is electroweak symmetry breaking. See Higgs Boson.
Industry:Physics
This theory describes two of the four fundamental forces, elctromagnetism and the weak interaction (responsible for nuclear decays) as a single force at high energy.
Industry:Physics
A unit of energy equal to the amount kinetic energy an electron gains after being accelerated through an electric potential of 1 Volt. It can also be used as a unit of mass by applying Einstein's relation E=mc<sup>2</sup>.
Industry:Physics
10<sup>-15</sup> barns. A unit used to measure cross-section. The inverse of this unit is used to measure integrated luminosity.
Industry:Physics
The term for a particle with half-integer spin. Examples include the quarks and leptons of the Standard Model.
Industry:Physics
An experiment in which a single energetic beam strikes a stationary target such as a block of metal. This is to be contrasted with collider experiments, in which two energetic beams collide head on.
Industry:Physics
the region of dark matter that surrounds the visible portion of a galaxy
Industry:Physics
photons of high energy. The most energetic forms of light are known as gamma rays.
Industry:Physics
