Measurement of the Proton-Antiproton Pair Production from Two-Photon Collisions

Preliminary result of the proton-antiproton pair production from two-photon collisions at LEP II energies is presented. Analysis method based on antiproton annihilates in EM calorimeter separates antiproton from other negative hadrons and electrons. The proton-antiproton pair production rate is also benefit from high luminosity function due to the highest energy available from LEP II energies. Backgrounds due to mis-identification, feed down, e.g., Σ⁺ → pπ⁰ (and its charge conjugate) or from extra π°^'s are examined.