Physics 9702 · AS & A Level · Fundamental particles

Fundamental particles — practice question

Which arrangement of quarks could not represent the quark makeup of the hadron illustrated? $p$ = proton $n$ = neutron $\Sigma^{-}$ = sigma particle of charge $-e$ $\Sigma^{+}$ = sigma particle of charge $+e$ $u$ = up quark $d$ = down quark $s$ = strange quark

  • A$\Sigma^{-}$ : $dds$
  • B$\Sigma^{+}$ : $uds$
  • C$p$ : $uud$
  • D$n$ : $udd$

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