610 articles – 3046 Notices  [english version]
 HAL : in2p3-00118063, version 1
 arXiv : nucl-ex/0612001
 Physical Review C 75 (2007) 044603
 Spallation Residues in the Reaction $^{56}$Fe + p at 0.3, 0.5, 0.75, 1.0 and 1.5 A GeV
 (13/04/2007)
 The spallation residues produced in the bombardment of 56}Fe at 1.5, 1.0, 0.75, 0.5 and 0.3 A GeV on a liquid-hydrogen target have been measured using the reverse kinematics technique and the Fragment Separator at GSI (Darmstadt). This technique has permitted the full identification in charge and mass of all isotopes produced with cross-sections larger than 10^{-2} mb down to Z=8. Their individual production cross-sections and recoil velocities at the five energies are presented. Production cross-sections are compared to previously existing data and to empirical parametric formulas, often used in cosmic-ray astrophysics. The experimental data are also extensively compared to different combinations of intra-nuclear cascade and de-excitation models. It is shown that the yields of the lightest isotopes cannot be accounted for by standard evaporation models. The GEMINI model, which includes an asymmetric fission decay mode, gives an overall good agreement with the data. These experimental data can be directly used for the estimation of composition modifications and damages in materials containing iron in spallation sources. They are also useful for improving high precision cosmic-ray measurements.
 Thème(s) : Physique/Physique Nucléaire Expérimentale
 Lien vers le texte intégral : http://fr.arXiv.org/abs/nucl-ex/0612001
 in2p3-00118063, version 1 http://hal.in2p3.fr/in2p3-00118063 oai:hal.in2p3.fr:in2p3-00118063 Contributeur : Michel Lion <> Soumis le : Lundi 4 Décembre 2006, 10:59:46 Dernière modification le : Mardi 13 Avril 2010, 09:49:10