antiparticle

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antiparticle

 [an″tĭ-pahr´tĭ-k'l]
either of a pair of elementary particles that have electric charges and magnetic moments of opposite sign and are the same in all other properties, such as mass, lifetime, and spin, e.g., the electron and positron. Every particle has an antiparticle. When antiparticles collide, they are annihilated, and their mass is converted to energy in the form of gamma rays.
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References in periodicals archive ?
All the studies that have been done have not found enough difference between particles and anti-particles to explain the dominance of matter over anti-matter," he noted.
The ALPHA team has developed techniques that not only cool and slow down the anti-particles that make up anti-hydrogen and gently mix them to produce anti-hydrogen atoms, but also trap some of the anti-atoms for long enough so that they can be studied.
A key advancement has been a new method that allows the cooled anti-particles to be brought together in a way that ensures the anti-hydrogen atoms are cold enough to be trapped.
anti-substances constructed of anti-particles (similar to the substances in the first quadrant).
In nuclear physics the neutrosophic method theoretically predicted "unmatter", built on particles and anti-particles, that was recently observed in CERN and Brookhaven experiments (see [5, 6] and References there).