Inclusive neutron cross sections at forward angles from Nb-Nb and Au-Au collisions at 800 MeV/nucleon
| العنوان: | Inclusive neutron cross sections at forward angles from Nb-Nb and Au-Au collisions at 800 MeV/nucleon |
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| المؤلفون: | K. Frankel, C. Hartnack, B. S. Flanders, A. R. Baldwin, J. W. Watson, W. Pairsuwan, B. D. Anderson, J. Varga, Richard Madey, M. Elaasar, W. M. Zhang, D. Keane, G. D. Westfall, Horst Stöcker |
| المصدر: | Physical Review C. 42:1068-1076 |
| بيانات النشر: | American Physical Society (APS), 1990. |
| سنة النشر: | 1990 |
| مصطلحات موضوعية: | Physics, Nuclear reaction, Nuclear and High Energy Physics, Particle physics, Neutron emission, Nuclear Theory, Spectral line, Nuclear physics, Distribution (mathematics), Neutron, Small-angle scattering, Nuclear Experiment, Nucleon, Energy (signal processing) |
| الوصف: | Inclusive neutron spectra were measured at 0\ifmmode^\circ\else\textdegree\fi{}, 4\ifmmode^\circ\else\textdegree\fi{}, 8\ifmmode^\circ\else\textdegree\fi{}, 15\ifmmode^\circ\else\textdegree\fi{}, 30\ifmmode^\circ\else\textdegree\fi{}, and 42\ifmmode^\circ\else\textdegree\fi{} from Nb-Nb and Au-Au collisions at 800 MeV/nucleon. A peak that originates from neutron evaporation from the projectile appears in the spectra at angles out to 8\ifmmode^\circ\else\textdegree\fi{}. The shapes and magnitudes of the spectra are compared with those calculated from models of nucleus-nucleus collisions. The differential cross sections for Au-Au collisions are about four times those for Nb-Nb collisions. The predictions of the Vlasov-Uehling-Uhlenbeck (VUU) and QMD theories agree with the angular distributions of the differential cross sections except at small angles; the VUU prediction overestimates the angular distributions from a few degrees to about 20\ifmmode^\circ\else\textdegree\fi{}, whereas the QMD prediction underestimates the angular distributions below 8\ifmmode^\circ\else\textdegree\fi{}. The Firestreak model overestimates the angular distribution for Nb-Nb collisions and underestimates it for Au-Au collisions. Also, the VUU and QMD models agree with the measured double-differential cross sections in more angular and energy regions than the Firestreak and intranuclear cascade models; however, none of the models can account for the peaks at small angles (\ensuremath{\theta}\ensuremath{\le}15\ifmmode^\circ\else\textdegree\fi{}). |
| تدمد: | 1089-490X 0556-2813 |
| DOI: | 10.1103/physrevc.42.1068 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::76021a09d6f13cbb775e484ba6af0faf https://doi.org/10.1103/physrevc.42.1068 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....76021a09d6f13cbb775e484ba6af0faf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1089490X 05562813 |
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| DOI: | 10.1103/physrevc.42.1068 |