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Question 20

The K0 K^0\,K0 meson, composed of the quark combination dsˉd\bar{s}dsˉ, is produced through the strong interaction between a π−\pi^-π− meson and a proton.

π−+p→K0+X \pi^- + \text{p} \rightarrow K^0 + \text{X} π−+p→K0+X

What is the quark composition of X\text{X}X?

udsudsuds

uuduuduud

udduddudd

ussussuss

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