Search for ${\Theta }^{++}$ Pentaquarks in the Exclusive Reaction $\gamma p\to K^{+}{K}^{-}p$

V. Kubarovsky, M. Battaglieri, R. De Vita +6

The reaction $\gamma p\to p{K}^{+}{K}^{-}$ was studied at Jefferson Lab with photon energies from 1.8 to 3.8 GeV using a tagged photon beam. The goal was to search for a ${\Theta }^{++}$ pentaquark, a…