Heard of these even more elementary particles

Click For Summary
SUMMARY

The discussion centers on the concept of preons, which are proposed as even more elementary particles than quarks. While preons are recognized within the scientific community, their acceptance is limited due to unresolved questions regarding the mass of bound states, particularly concerning leptons like electrons and neutrinos. The challenge lies in understanding how these sub-leptonic particles can yield light bound states, as current theories do not adequately explain the masslessness of neutrinos. A new theoretical framework is necessary to address these dynamics.

PREREQUISITES
  • Understanding of particle physics fundamentals
  • Familiarity with quark and lepton models
  • Knowledge of quantum mechanics principles
  • Basic grasp of theoretical physics concepts
NEXT STEPS
  • Research the concept of preons and their implications in particle physics
  • Explore the dynamics of bound states in quantum mechanics
  • Study the properties and theories surrounding neutrinos and their mass
  • Investigate current theoretical frameworks addressing sub-leptonic particles
USEFUL FOR

Physicists, students of particle physics, and researchers interested in the fundamental structure of matter and the dynamics of elementary particles.

libbon
Messages
33
Reaction score
0
I don't know if anyone has heard of these even more elementary particles, http://en.wikipedia.org/wiki/Preon
There even more fundamental than quarks, i was wondering if they are well excepted into the scientific community or if its a very unlikely that they are real.
 
Physics news on Phys.org


They are well excepted but not well accepted.
 


The problem with sub-leptonic particles is that up to now nobody understands how bound states (ordinary leptons like electrons, neutrinos and quarks) of these sub-leptonic particles can be light.

Usually bound state masses scale with some power of 1/x where x is a typical length scale. This is a rather simple consideration which already works in quantum mechanics: from the size of the Hydrogen atom you can estimate its ionization energy. The order of magnitude comes out right.

But neutrinos are (nearly) massles and (nearly) point like, so somehow the usual mechanism do no longer work.

So it is not enough to put together these objects algebraically, one has to find a theory with correct dynamics.
 

Similar threads

  • · Replies 6 ·
Replies
6
Views
7K
  • · Replies 13 ·
Replies
13
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 48 ·
2
Replies
48
Views
8K
  • · Replies 10 ·
Replies
10
Views
4K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 15 ·
Replies
15
Views
6K
  • · Replies 15 ·
Replies
15
Views
8K