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| From: Zardoz ® |
03/11/2001
8:28:46
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| Subject: re: QUANTUM MECHANICS
FAQ |
post id:
482676
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DEFINITIONS
Antiparticle
A particle and its
antiparticle have a number of opposite properties.If they have charge,
then these will be opposite. For example the muon is negatively charged
and the anti-muon is positively charged. However the neutrino and
antineutrino are both uncharged, but are nevertheless are different (they
have a property called lepton number, which is
opposite).
Antimatter
Matter composed of the antiparticles of
normal matter.
Flavour
A characteristic that distinguishes
different types of hadrons and leptons with different masses (apart from
the neutrinos, which as far as we know, are
massless).
Colour
Property of quarks associated with their
binding with gluons.
Sub-atomic
Smaller than the atom. The
structure of the atom.
Cosmic rays
High energy particles from
outer space.
The quark theory of the structure of matter
The
theory that all hadrons, such as the protons and neutrons in the nucleus,
are made of quarks.
Electron Volt (eV)
One electron Volt
(eV)is the energy gained by an electron when it is accelerated through
apotential of 1 Volt.The binding energy on an electron in an atom is of
the order of 1 eV.
Giga electron Volt (GeV)
One billion
electron Volts, or 1,000,000,000 eV. The energy-equivalent (E=mc^2) of the
mass of a proton is about 1 GeV.
Tera electron Volt (TeV)
One trillion electron volts, or 1,000 GeV.So far the most powerful
accelerators in the world (eg. the Tevatron at Fermilab) can produce beams
of protons with an energy of about 1 TeV.
CP violation
In
almost all circumstances antimatter seen in a mirror behaves like normal
matter. Very occasionally, in the decay of kaons (and perhaps in the decay
of B-mesons, though this has not yet been seen), this rule is violated.
This is known as CP violation.
http://hepwww.rl.ac.uk/Pub/Phil/glossary.html#antiparticle
The
Particle Adventure is an award-winning site that allows you to explore the
world of fundamental particles and forces and then to investigate the
experimental evidence and techniques.
http://particleadventure.org/particleadventure/index.html
THE PARTICLE ADVENTURE
More About Particle Physics
This site is a portal to
numerous useful sources on the internet.
http://www.fnal.gov/pub/inquiring/more/more.html
FERMILAB INQUIRING MINDS
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