Evidence for double φ production in the reaction K−p → φφΛ/Σ0 at 18.5 GeV/c

Abstract Evidence is found for the reaction K − p → φφΛ / Σ 0 at 18.5 GeV/ c . The total cross section is estimated to be 190 ± 30 nb. A comparison with the reaction π − p → φφ n at 16 and 23 GeV/ c shows a suppression factor of about 6 going from K to π beams, which is much lower than that found for single φ production.