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Question: 

What are the quark combinations that can form

  1. a neutron,
  2. an antineutron,
  3. a $\Lambda^0$,
  4. a $\bar{\Sigma} \, \! ^0$?

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer: 
  1. $n=udd$
  2. $\bar{n} = \bar{u} \bar{d} \bar{d}$
  3. $sud$
  4. $\bar{s} \bar{u} \bar{d}$

Giancoli 7th Edition, Chapter 32, Problem 35

(3:26)

Chapter 32, Problem 35 is solved.

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