Chapter 32, Problem 61GP

To determine

To Explain: The quark model of the given reaction.

Answer to Problem 61GP

One d quark from the neutron joins with a $\overline{u}$ quark from the antiproton and ${\pi }^{-}$ .

  $u,\overline{u},d,\text{and}\overline{d}$ -these four quarks are used to formed ${\pi }^0$ .

Explanation of Solution

Introduction:

Quark model is a scheme for the hadron’s classification in terms of its valence quarks.

On the base of quark model, one d quark from the neutron joins with a $\overline{u}$ quark from the antiproton and formed the ${\pi }^{-}$ . The other four quarks which help in the ${\pi }^0$ formation is $u,\overline{u},d,\text{and}\overline{d}$ .