• Medientyp: E-Artikel
  • Titel: Evidence of kaon nuclear and Coulomb potential effects on soft K+ production from nuclei
  • Beteiligte: Nekipelov, M. [Verfasser:in]; Büscher, M. [Verfasser:in]; Merzliakov, S. [Verfasser:in]; Mikirtychiants, S. [Verfasser:in]; Ohm, H. [Verfasser:in]; Petrus, A. [Verfasser:in]; Prasuhn, D. [Verfasser:in]; Rathmann, F. [Verfasser:in]; Rudy, Z. [Verfasser:in]; Schleichert, R. [Verfasser:in]; Schneider, H. [Verfasser:in]; Sistemich, K. [Verfasser:in]; Cassing, W. [Verfasser:in]; Stein, H. J. [Verfasser:in]; Ströher, H. [Verfasser:in]; Watzlawik, K.-H. [Verfasser:in]; Wilkin, C. [Verfasser:in]; Hartmann, M. [Verfasser:in]; Hejny, V. [Verfasser:in]; Kleber, V. [Verfasser:in]; Koch, H. R. [Verfasser:in]; Koptev, V. [Verfasser:in]; Maeda, Y. [Verfasser:in]; Maier, R. [Verfasser:in]
  • Erschienen: North-Holland Publ., 2002
  • Erschienen in: Physics letters / B 540, 207 - 212 (2002). doi:10.1016/S0370-2693(02)02176-7
  • Sprache: Englisch
  • DOI: https://doi.org/10.1016/S0370-2693(02)02176-7
  • ISSN: 0370-2693
  • Schlagwörter: silver ; dependence: mass number ; magnetic spectrometer: experimental results ; p nucleus: inclusive reaction ; gold ; potential: optical ; kaon production ; carbon ; Juelich COSY PS ; Coulomb suppression ; production: small-angle ; momentum dependence ; potential: Coulomb ; 1.5-2.3 GeV ; K+: yield ; copper ; final-state interaction ; K+: hadroproduction
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  • Beschreibung: The ratio of forward K+ production on copper. silver and gold targets to that on carbon has been measured at proton beam energies between 1.5 and 2.3 GeV as a function of the kaon momentum p(K) using the ANKE spectrometer at COSY-Julich. The strong suppression in the ratios observed for p(K) < 200-250 MeV/c may be ascribed to a combination of Coulomb and nuclear repulsion in the K+ A system. This opens a new way to investigate the interaction of K+-mesons in the nuclear medium. Our data are consistent with a K+ A nuclear potential of V-K(0) approximate to 20 MeV at low kaon momenta and normal nuclear density, Given the sensitivity of the data to the kaon potential, the current experimental precision might allow one to determine V-K(0) to better than 3 MeV. (C) 2002 Elsevier Science B.V. All rights reserved.
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