Antineutrons, protons, electrons

  • Context: Graduate 
  • Thread starter Thread starter dayglo
  • Start date Start date
  • Tags Tags
    Electrons Protons
Click For Summary
SUMMARY

The discussion confirms that it is not theoretically possible to create stable helium atoms with combinations of protons, antineutrons, negatrons, positrons, and neutrons. Specifically, protons and antineutrons cannot coexist due to their quark composition leading to annihilation. Additionally, the presence of positrons alongside protons results in repulsion, causing instability. The terms "negatron" and its equivalence to antiprotons are clarified, emphasizing the same annihilation issue as with antineutrons.

PREREQUISITES
  • Understanding of particle physics concepts, specifically quarks and antiquarks
  • Knowledge of atomic structure and stability
  • Familiarity with the behavior of charged particles
  • Basic grasp of particle-antiparticle interactions
NEXT STEPS
  • Research the properties of quarks and antiquarks in particle physics
  • Study the principles of atomic stability and nuclear forces
  • Explore the interactions between charged particles, including repulsion and attraction
  • Investigate the concept of particle-antiparticle annihilation in detail
USEFUL FOR

Students and professionals in physics, particularly those focused on particle physics, atomic theory, and nuclear chemistry.

dayglo
Messages
1
Reaction score
0
Is it theoretically possible to have:

a) a helium atom with 2 protons, 2 electrons, and 2 antineutrons
b) a helium atom with 2 negatrons, 2 positrons, and 2 neutrons
c) a helium atom with 2 protons, 2 positrons and 2 neutrons

etc...
 
Physics news on Phys.org
No:

a) Protons and antineutrons will not play nice together. One way to think about it is to note that protons contain up and down quarks, while antineutrons contain up and down antiquarks. These quarks and antiquarks will annihilate with each other and so you can't get a stable nucleus composed of protons and antineutrons.

b) What's a negatron? An antiproton? If so, this will have the same problem as a).

c) The protons will repel the positrons (because both have positive charge), so the positrons will go flying off into space.
 

Similar threads

  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 20 ·
Replies
20
Views
4K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 3 ·
Replies
3
Views
4K
  • · Replies 9 ·
Replies
9
Views
4K
  • · Replies 7 ·
Replies
7
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K