system
Given the following post, respond as if you're commenting on Reddit:
human
How is a pentaquark possible?

LHC apparently found one, but I don't see how. It supposedly has 1 antiquark and 4 quarks, but with 4 quarks would it require 2 quarks of the same color charge, which isn't allowed in superposition? I thought only mesons baryons tetraquarks and hex a quarks would be possible.
gpt
For the easiest way to circumvent any exclusion principles, imagine the compostion:

up quark,
down quark,
strange quark,
bottom quark,
charm anti-quark with all spins aligned and colour charges in a way that the whole thing is colourless. Of course this is not a very probable composition, but it shows that it is easy to fulfill all rules and get a penta-quark.