Investigation of pion absorption in heavy-ion induced subthresholdπ0production
| Autor: | A.L. Boonstra, Miriam Marqués, L. Sezac, T. Matulewicz, R. W. Novotny, B. Fornal, L. Freindl, W. F. Henning, M. Pfeiffer, J. S. Díaz, F. Lefevre, R.S. Simon, R.S. Mayer, V. Metag, E. Casal, W. Mittig, Yves Roland Schutz, R.W. Ostendorf, Barbara Ewa Erazmus, R. Holzmann, H. Dabrowski, D. Ardouin, W. Kühn, G. Martínez, H. Delagrange, F. D. Berg, J.L. Ferrero, Herbert Löhner, Z. Sujkowski, Facundo Ballester, H. W. Wilschut, C. Lebrun, R. Merrouch, H. Nifenecker, L.B. Venema |
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| Rok vydání: | 1993 |
| Předmět: |
Physics
Nuclear reaction Meson 010308 nuclear & particles physics Subthreshold conduction Scattering Nuclear Theory Attenuation length General Physics and Astronomy Nuclear matter 01 natural sciences 7. Clean energy Nuclear physics Pion 0103 physical sciences High Energy Physics::Experiment Atomic physics Nuclear Experiment 010306 general physics Nucleon |
| Zdroj: | Physical Review Letters. 70:904-907 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.70.904 |
| Popis: | We present results from an experimental study of reabsorption effects in subthreshold pi0 production in the reaction Xe-129 + Au-197 at 44 MeV/nucleon. Within the picture of pion generation in nucleon-nucleon scattering we deduce, from our data and from a comparison with the systematics of production cross sections available for lighter reaction systems, information on the pi0 absorption length in nuclear matter. For the pi0 kinetic-energy range congruent-to 5-100 MeV the energy-averaged lambda(abs) and its momentum dependence are obtained, and compared with optical-model calculations. |
| Databáze: | OpenAIRE |
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