# Light composite fermion as a bound state formed by $SU(4)$ gauge force attractions

In this paper https://inspirehep.net/literature/152400, in eq.(3.4), it claims that

the MAC (most attractive channel) in $$SU(4)$$ gauge theory will attract

fermions in $$[1]_4$$

and

fermions in $$[3]_4$$

to form a bonus state: a Dirac fermion.

question 1 --- It looks that $$[1]_4$$ and $$[3]_4$$ both have fermionic statistics, would the bound states should be bosonic statistics? (Is there a mistake?)

question 2 --- $$[1]_4 [3]_4 \sim [1]_4 \times [3]_4\sim [4]_4$$ should be a boson, rather than a Dirac fermion as a spacetime spinor?
question 3 --- $$[0]_4 [1]_4 [3]_4 \sim [0]_4 \times [1]_4 \times [3]_4 \sim [0]_4 [4]_4$$ should be a Weyl fermion as a spacetime spinor?