\Theta^+ and \Lambda(1520) production in pp reactions at high energies

Abstract

We estimate the cross sections for the inclusive production of ${\Theta }^{+}$ and $\Lambda (1520)$ in $pp$ collisions at high energy using the $K$ exchange diagrams. We find that inclusive ${\Theta }^{+}$ production should be at the level of 1 $\mu$b at energies~ $\sqrt{s}\gtrsim 10\mathrm{GeV}$. The ratio of ${\Theta }^{+}(1540)$ to $\Lambda (1520)$ production cross-sections is $\sim 1$.

Comments: Contribution to the PANIC05 Conference, Santa Fe, NM USA, October 2005