If Neutrinos are majorana particles, does this mean lepton number is not conserved?

Click For Summary
SUMMARY

The discussion centers on the implications of neutrinos being Majorana particles and the potential non-conservation of lepton number in particle reactions. Participants highlight that the weak interaction, which involves W bosons, may exhibit preferences for matter over antimatter, similar to its preference for left-handed particles. The concept of neutrino oscillation is debated, with some suggesting that this could classify neutrinos as Dirac fermions rather than Majorana fermions. Neutrinoless double beta decay is identified as a key experimental focus related to these theories.

PREREQUISITES
  • Understanding of Majorana and Dirac fermions
  • Familiarity with weak interaction and W bosons
  • Knowledge of lepton number conservation
  • Awareness of C and CP symmetry violations
NEXT STEPS
  • Research the implications of Majorana neutrinos on lepton number conservation
  • Explore the experimental search for neutrinoless double beta decay
  • Study the principles of neutrino oscillation and its classification
  • Investigate the effects of C and CP symmetry violations in particle physics
USEFUL FOR

Particle physicists, researchers in neutrino studies, and students exploring the implications of neutrino properties on fundamental physics.

Helena Wells
Messages
125
Reaction score
9
If neutrinos are majorana particles does this mean that lepton number is not conserved in particle reactions? And I only noticed neutrinos are only produced when the decay of a particle to some other particles is carried by the W bosons ( weak interaction ).

Is it possible the weak interaction 'prefers' matter over antimatter somehow just like it prefers left handed particles and right handed antiparticles?
 
Last edited:
Physics news on Phys.org
If. Conflicting unverifiable theories. I prefer theories that fit empirical results. Some studies postulated neutrinos oscillated between particle and antiparticle which would make it a Dirac Fermion not Majorana Fermion. I don't see why Lepton number changes since it is still a Fermion
"God did it" is just as verifiable as any theory out there explaining the preponderance of matter. As far as tested, there is no difference in the magnitude of matter or anti-matter properties that would advantage one over the other.
 
Helena Wells said:
If neutrinos are majorana particles does this mean that lepton number is not conserved in particle reactions?

Sure, neutrinoless double beta decay would be the simplest example that comes to mind and is something actively looked for in experiments.

Helena Wells said:
Is it possible the weak interaction 'prefers' matter over antimatter somehow just like it prefers left handed particles and right handed antiparticles?

To put it in more technical terms, the weak interaction violates C and CP symmetry, yes.
 
  • Like
Likes   Reactions: vanhees71
Dr.AbeNikIanEdL said:
Sure, neutrinoless double beta decay would be the simplest example that comes to mind and is something actively looked for in experiments.
To put it in more technical terms, the weak interaction violates C and CP symmetry, yes.
I am not sure if weak interaction prefers matter over antimatter but I am sure it prefers left handed particles over right handed particles and right handed antiparticles over left handed antiparticles.
 
I don't understand how that is a response to what I wrote...
 

Similar threads

  • · Replies 5 ·
Replies
5
Views
2K
Replies
6
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 4 ·
Replies
4
Views
5K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 8 ·
Replies
8
Views
4K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
4K
  • · Replies 6 ·
Replies
6
Views
2K