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Spin actually is?

by EIRE2003
Tags: spin
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EIRE2003
#1
Jan11-04, 06:19 PM
P: 110
Hey I am new to this and im studing physics on my own and im just wondering wat Spin actually is? is it when a particle such as a gluon is in a spin, in motion wit atomic geometry?
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suyver
#2
Jan13-04, 10:26 AM
suyver's Avatar
P: 265
One way to think about spin is the following: when a particle has spin [itex]s[/itex], that means that when you rotate the particle over [itex]360/s[/itex] degrees the particle will look the same. So, spin 1 particles have to be rotated 360 degrees, but spin 2 particles have a higher symmetry and need only to be rotated over 180 degrees. Interestingly, there are also particles with spin 1/2 (such as the electron). That means that they do not look the same when you rotate them over 360 degrees! Only when rotated over twice 360 degrees will such a particle look the same. Quantum-fun...
benzun_1999
#3
Jan13-04, 12:01 PM
P: 258
Which direction will the spin be in space where there is no direction.
how will you measure an angle there?

-benzun


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