Comparison of inclusive K+ production in proton-proton and proton-neutron collisions
Valdau, Yu. · Koptev, V. · Barsov, S. · Buescher, M. · Dzyuba, A. · Hartmann, M. · Kacharava, A. · Keshelashvili, I. · Khoukaz, A. · Mikirtychiants, S. · Nekipelov, M. · Polyanskiy, A. · Rathmann, F. · Stroeher, H. · Uzikov, Yu. N. · Wilkin, C.
Original · EN
The momentum spectra of K+ produced at small angles in proton-proton and proton-deuteron collisions have been measured at four beam energies, 1.826, 1.920, 2.020, and 2.650 GeV, using the ANKE spectrometer at COSY-Juelich. After making corrections for Fermi motion and shadowing, the data indicate that K+ production near threshold is stronger in pp- than in pn-induced reactions. However, most of this difference could be made up by the unobserved K0 production in the pn case.
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