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arXiv · 1109.0176

Comparison of inclusive K+ production in proton-proton and proton-neutron collisions

Yu. Valdau·V. Koptev·S. Barsov·M. Buescher·A. Dzyuba·M. Hartmann·A. Kacharava·I. Keshelashvili·A. Khoukaz·S. Mikirtychiants·M. Nekipelov·A. Polyanskiy·F. Rathmann·H. Stroeher·Yu. N. Uzikov·C. Wilkin
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Abstract

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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Yu. Valdau, V. Koptev, S. Barsov, M. Buescher, A. Dzyuba, M. Hartmann, A. Kacharava, I. Keshelashvili, A. Khoukaz, S. Mikirtychiants, M. Nekipelov, A. Polyanskiy, F. Rathmann, H. Stroeher, Yu. N. Uzikov, C. Wilkin. 2011-09-01. Comparison of inclusive K+ production in proton-proton and proton-neutron collisions. https://doi.org/10.1103/physrevc.84.055207

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