Near-threshold charged kaon pair production in two protons collisions

oleh: Gil Damian, Smyrski Jerzy

Format: Article
Diterbitkan: EDP Sciences 2016-01-01

Deskripsi

The pp → ppK+K− reaction was measured near threshold at excess energy Q = 4.5 MeV using the COSY-11 detection system installed at the COSY-Juelich accelerator. Preliminary value of upper limit of the total cross section was determined. This limit indicates that an enhancement of the total cross section close to the threshold, caused by the final state interaction, is smaller than suggested by extrapolation of data measured at higher energies.