Register to reply

Charge conjugation and time reversal in the SM

by Einj
Tags: charge, conjugation, reversal, time
Share this thread:
Feb1-14, 12:18 PM
P: 328
Hi everyone. I have a doubt on charge conjugation symmetry. Consider the Standard Model lagrangian with just the gauge and the fermionic part (no Higgs and no Yukawa). This is invariant under [itex]SU(3)_C\times SU(2)_L\times SU(2)_R\times U(1)_Y[/itex]. Moreover, as any other field theory, it is [itex]CPT[/itex] invariant.

Since, however [itex]P[/itex] is clearly violated by the asymmetry in the left-right fields we know that [itex]CT[/itex] must be violated too.

What can we say about [itex]C[/itex] and [itex]T[/itex] independently?
Phys.Org News Partner Physics news on
UCI team is first to capture motion of single molecule in real time
And so they beat on, flagella against the cantilever
Tandem microwave destroys hazmat, disinfects

Register to reply

Related Discussions
Charge conjugation in Dirac equation High Energy, Nuclear, Particle Physics 2
Charge conjugation in second quantization Quantum Physics 2
What changes under charge conjugation High Energy, Nuclear, Particle Physics 4
Charge Conjugation Operation High Energy, Nuclear, Particle Physics 6
Help! About charge conjugation of Dirac spinor Quantum Physics 1