p pinteractions at 300 GeV/c:γand neutral-strange-particle production

In a 35 000-picture exposure of the Fermilab 30-in. hydrogen bubble chamber to a 300-GeV/c proton beam 1863 neutral $V^0\text{'}\mathrm{s}$ were measured. The inclusive cross sections for $\gamma$, $K_s^0$, $\frac{{\Lambda }^0}{{\Sigma }^0}$, and $\frac{{\overline{\Lambda }}^0}{{\overline{\Sigma }}^0}$ are 257 ± 18 mb, 7.3 ± 0.6 mb, 3.6 ± 0.4 mb, and 1.0 ± 0.3 mb, respectively. The correlation with charged particles and other inclusive features are studied.