Abstract
The near threshold total cross section and angular distributions of K+K− pair production via the reaction pp→ppK+K− have been studied at an excess energy of Q=17 MeV using the COSY-11 facility at the cooler synchrotron COSY. The obtained cross section as well as an upper limit at an excess energy of Q=3 MeV represent the first measurements on the K+K− production in the region of small excess energies where production via the channel pp→ppΦ→ppK+K− is energetically forbidden.
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