Subthreshold $K^+$ production in proton-nucleus collisions
| Autor: | N. Willis, M. Debowski, B. Tatischeff, A. Zghiche, W. Waluś, E. Schwab, D. Miśkowiec, P. Courtat, M. Boivin, Peter Senger, R. Wurzinger, Y. Le Bornec, T. Kirchner, R. Barth, R. Gacougnolle, E. Grosse, C. Müntz, J. Yonnet, M. Cieślak, Andreas Wagner, M. P. Comets, C. Sturm, J. M. Martin |
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| Přispěvatelé: | Helmholtz zentrum für Schwerionenforschung GmbH (GSI), Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11) |
| Jazyk: | angličtina |
| Rok vydání: | 1996 |
| Předmět: |
Physics
Nuclear and High Energy Physics Proton Subthreshold conduction 010308 nuclear & particles physics 25.75.+r 25.40.-h [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex] 01 natural sciences 7. Clean energy Nuclear physics Momentum medicine.anatomical_structure 0103 physical sciences medicine Nuclear fusion Spectral function Atomic physics Nucleon 010306 general physics Nuclear Experiment Nucleus Beam energy |
| Zdroj: | Zeitschrift für Physik A Zeitschrift für Physik A, Springer-Verlag, 1996, 356, pp.313-325. ⟨10.1007/s002180050185⟩ |
| ISSN: | 0340-2193 1434-601X |
| Popis: | Double differential K$^+$ cross sections have been measured in p+C collisions at 1.2, 1.5 and 2.5 GeV beam energy and in p+Pb collisions at 1.2 and 1.5 GeV. The K$^+$ spectrum taken at 2.5 GeV can be reproduced quantitatively by a model calculation which takes into account first chance proton-nucleon collisions and internal momentum with energy distribution of nucleons according to the spectral function. At 1.2 and 1.5 GeV beam energy the K$^+$ data excess significantly the model predictions for first chance collisions. When taking secondary processes into account the results of the calculations are in much better agreement with the data. |
| Databáze: | OpenAIRE |
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