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Πέμπτη 25 Σεπτεμβρίου 2014

Photons, Gravitons & Weak Bosons | Standard Model Of Particle Physics

 

Photons, Gravitons & Weak Bosons | Standard Model Of Particle Physics

Ανέβηκε στις 8 Δεκ 2009
http://www.facebook.com/ScienceReason ... The Standard Model of Particle Physics (Chapter 6): Photons, Gravitons & Weak Bosons.

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STANDARD MODEL OF PARTICLE PHYSICS:
http://www.youtube.com/user/Best0fSci...

1) First Second Of The Universe:
http://www.youtube.com/watch?v=4HXPYO...
2) Force And Matter:
http://www.youtube.com/watch?v=p5QXZ0...
3) Quarks:
http://www.youtube.com/watch?v=PxQwkd...
4) Gluons:
http://www.youtube.com/watch?v=ZYPem0...
5) Electrons, Protons And Neutrons:
http://www.youtube.com/watch?v=Vi91qy...
6) Photons, Gravitons & Weak Bosons:
http://www.youtube.com/watch?v=JHVC6F...
7) Neutrinos:
http://www.youtube.com/watch?v=m7QAaH...
8) The Higgs Boson / The Higgs Mechanism:
http://www.youtube.com/watch?v=1_HrQV...

The
Standard Model of particle physics is a theory of three of the four
known fundamental interactions and the elementary particles that take
part in these interactions. These particles make up all visible matter
in the universe.

Every high energy physics experiment carried out
since the mid-20th century has eventually yielded findings consistent
with the Standard Model.

Still, the Standard Model falls short of
being a complete theory of fundamental interactions because it does not
include gravitation, dark matter, or dark energy. It is not quite a
complete description of leptons either, because it does not describe
nonzero neutrino masses, although simple natural extensions do.

http://en.wikipedia.org/wiki/Standard...

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PHOTONS

Photons
are the gauge bosons the force carriers for Electromagnetism.
Whenever charged particles interact, photons are exchanged.

They
have no mass, no electric charge, no weak charge, and no color charge
the epitome of almost nothing at all. And yet here is where its at!

Since
they are responsible for all electron and proton interaction,
everything we do in our everyday life from moving a mouse to running in
the park relies on the exchange of photons.

They are energy,
contained in shifting and changing Electric and Magnetic Fields Like all
particles with no rest mass, photons travel at the speed of light. They
cannot come to rest.

Photons in the range of visible light carry just enough energy to excite a single molecule in a photoreceptor cell of your eye.

GRAVITONS

Gravitons
are the as-yet undiscovered force carriers for Gravity. Because of the
great success of the Standard model in describing the other three forces
with exchange bosons, it is assumed that gravity has a gauge boson as
well. Its properties have been extrapolated. It is a massless, stable,
spin = 2 particle that travels at the speed of light. Gravitons may not
be constrained to the dimensions of space and time that we experience

WEAK BOSONS (INTERMEDIATE VECTOR BOSONS)

Weak bosons, also called Intermediate Vector Bosons, are the exchange particles for the Weak Nuclear Force.

There are three of them called W+, W-, and Z0. They are very massive, each being 80-90 times as heavy as a proton.

Because
they are so heavy, the uncertainty principle allows them only an
extremely short range when they act as force carriers. So the Weak
Nuclear Force has a range only about 1/100 the diameter of a proton. The
W bosons cause quarks to change flavor while the Z has an effect in an
esoteric type of interaction called neutral currents.

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The Cassiopeia Project - making science simple!

The
Cassiopeia Project is an effort to make high quality science videos
available to everyone. If you can visualize it, then understanding is
not far behind.

http://www.cassiopeiaproject.com
.

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