| isospin symmetry -
01-12-2006, 01:03 PM
Dave,
It is about the hidden symmetry inside the nucleus which started the search for undetectable role changing between proton and neutron. This led to parity (P) nonconservation and also CP nonconservation (C for charge conjugation - switching of positive with negative vice versa). These indicate that even subatomic particles don't want to change role with each other.
Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: ¶a(t)·¶r(t)=c²
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