3 ms·
Despite free neutrons decaying in 800s, there are many stable elements containing neutrons. Would it be possible to imagine a tetraquark as an ingredient of a s
by im3w1l 5y ago
Despite free neutrons decaying in 800s, there are many stable elements containing neutrons. Would it be possible to imagine a tetraquark as an ingredient of a stable particle?
- dukwon 5y agoNo. The presence of a valence antiquark guarantees it will decay at some point.
- evanb 5y agoThat’s not the full explanation; the antiproton is stable (or, is as stable as the proton). It’s that the net baryon number is 0 and that the flavor ‘quantum numbers’ aren’t conserved by the weak force. If you could turn off the weak force, this cc ubar dbar tetraquark would be absolutely stable.