Possibility of a stable mesonic nucleus

  • #1
Garlic
Gold Member
176
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Hello everyone,
If a nucleus consisting solely of mesons has enough mesons in it, will it be stable?
Mesons are bosons, therefore (unlike baryons) they aren't effected by the pauli exclusion principle, so they all can acquire the lowest energy state.
In theory, if there are enough mesons, the mass defect becomes so high, that it is more favourable for the nucleus to not decay, and be stable (assumed the mesons are uncharged, don't decay via electromagnetic force and aren't their exact antiparticles)
The appropriate meson selection would be the neutral kaon, as it decays via the weak force.
So, if a nucleus has (only) enough neutral kaons in it, will it be stable?

Note: the problem with the neutral kaons is that they oscillate into antikaons, which are their antiparticles, and their existence would make the system collapse.
 

Answers and Replies

  • #2
35,268
11,534
In theory, if there are enough mesons, the mass defect becomes so high, that it is more favourable for the nucleus to not decay
Where is that theory?
All meson decays release at least tens of MeV, more than the binding energy in nuclei. Increase that to at least 100 MeV if you don't take charged pions of the same charge only.
 
  • #3
Garlic
Gold Member
176
68
Where is that theory?
There is no theory. I was thinking, because mesons experience the residual nuclear force, the mass defect gets higher with each meson added.

All meson decays release at least tens of MeV, more than the binding energy in nuclei. Increase that to at least 100 MeV if you don't take charged pions of the same charge only.
So, with each meson we add, we are increasing the instability of the nucleus instead of reducing it.

Okay, I understand. Thank you.
 

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