- #1
franoisbelfor
- 42
- 0
What is wrong in this reasoning about CPT symmetries?
Spatial inversion P preserves spin and inverses velocity. (See wikipedia,
at http://en.wikipedia.org/wiki/P-symmetry )
Motion or time inversion T inverses both spin and velocity (obvious, see also wikipedia,
at http://en.wikipedia.org/wiki/T-symmetry ).
Now, charge conjugation C preserves chirality. ( http://en.wikipedia.org/wiki/Charge_conjugation )
That means that either spin and velocity are both inverted or they are both preserved.
But: In either of these two cases, C cannot be equal to TP.
Now, C=TP is a deep theorem in physics!
What is wrong in this argument chain?
François
Spatial inversion P preserves spin and inverses velocity. (See wikipedia,
at http://en.wikipedia.org/wiki/P-symmetry )
Motion or time inversion T inverses both spin and velocity (obvious, see also wikipedia,
at http://en.wikipedia.org/wiki/T-symmetry ).
Now, charge conjugation C preserves chirality. ( http://en.wikipedia.org/wiki/Charge_conjugation )
That means that either spin and velocity are both inverted or they are both preserved.
But: In either of these two cases, C cannot be equal to TP.
Now, C=TP is a deep theorem in physics!
What is wrong in this argument chain?
François