Heavy-Particle Production in 300-GeV/<i>c</i>Proton/Tungsten Collisions

Abstract

A search was made for massive particles produced by 300-GeV/c protons, A 1.1-km flight path through a beam transport system permitted the measurement of the production of heavy particles for secondary momenta of 25 to 200 GeV/c. No counts were obtained for masses greater than 2 GeV${/\mathit{c}}^{2}$ among 5.5 \ifmmode\times\else\texttimes\fi{} ${10}^{7}$ secondary particles. Cross sections are presented for forward production of ${\ensuremath{\pi}}^{+}$, ${\ensuremath{\pi}}^{\ensuremath{-}}$, $p$, $\overline{p}$, $d$, and $\overline{d}$.