Details
The X and Y bosons couple quarks to leptons, allowing violation of the conservation of baryon number and thus permitting proton decay.
An X boson would have the following decay modes:
- X → u + u
- X → e+ + d
where the two decay products in each process have opposite chirality, u is an up quark, d is a down quark and e+ is a positron.
A Y boson would have the following decay modes:
- Y → e+ + u
- Y → d + u
- Y → d + ν
e
where the first decay product in each process has left-handed chirality and the second has right-handed chirality and ν
e is an electron antineutrino.
Similar decay products exist for the other quark-lepton generations
In these reactions, neither the lepton number (L) nor the baryon number (B) is conserved, but B − L is. Different branching ratios between the X boson and its antiparticle (as is the case with the K-meson) would explain baryogenesis.
Read more about this topic: X And Y Bosons
Famous quotes containing the word details:
“Then he told the news media
the strange details of his death
and they hammered him up in the marketplace
and sold him and sold him and sold him.
My death the same.”
—Anne Sexton (1928–1974)