Gord_in_Toronto
Penultimate Amazing
- Joined
- Jul 22, 2006
- Messages
- 26,456
I see that there has not been a thread abut CERN for some time.
Is it "Turtles All the Way Down"?
LHCb discovers three new exotic particles
Once upon a time there were three elementary particles and it all made sense.
Now:
I wonder if the actual number of particles in this universe has a fixed limit?
Is it "Turtles All the Way Down"?
LHCb discovers three new exotic particles
Once upon a time there were three elementary particles and it all made sense.
Now:
Quarks are elementary particles and come in six flavours: up, down, charm, strange, top and bottom. They usually combine together in groups of twos and threes to form hadrons such as the protons and neutrons that make up atomic nuclei. More rarely, however, they can also combine into four-quark and five-quark particles, or “tetraquarks” and “pentaquarks”. These exotic hadrons were predicted by theorists at the same time as conventional hadrons, about six decades ago, but only relatively recently, in the past 20 years, have they been observed by LHCb and other experiments.
I wonder if the actual number of particles in this universe has a fixed limit?
