You are right. But my question can be reformulated.
In some theories (see saw II or III), we assume the existence of a scalar SU(2)L triplet defined by Δ=(Δ++,Δ+,Δ°) (=Higgs triplet) or new fermionic SU(2) triplet Σ=(Σ+,Σ°,Σ-). In such models, we refer on the mass of the triplet mΔ or mΣ. My...
Thank you, this text is very useful.
But I am still not sure to understand the difference between the fields component and the particle.
For example for the Dirac field where ##\Psi_{D}=\Psi_{L}+\Psi_{R}##, the four components of the field ##\Psi_{D}## are...
Dirac description
If I well understood a Dirac description for fermions is :
##\Psi_{D}=\Psi_{L}+\Psi_{R}## where ##\Psi_{L}## is the left-chiral spinor and ##\Psi_{R}## the right-chiral spinor.
Each spinor, ##\Psi_{L} ## and ##\Psi_{R}## has 2 components cotrresponding to the particle and...
Thanks !
But in fact I am not sure it is right...
Look double beta decay : right (chirality) antineutrino is first emitted, then its helicity is flipped (massive neutrino) : it becomes a left helicity antineutrino still with right chirality. And, if Majorana, this left helicity antineutrino...
A left handed neutrino (chirality) can be seen with a right helicity due to a lorentz boost. Can this neutrino interact ? Yes because it is still left-handed chirality ?