Reference : Elusiveness of evidence for multifragmentation in 1-GeV proton-nucleus reactions
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/138658
Elusiveness of evidence for multifragmentation in 1-GeV proton-nucleus reactions
English
Mancusi, D. [Fundamental Interactions in Physics and Astrophysics, University of Liège, Bĝt. B5, Allée du 6 août 17, B-4000 Liège 1, Belgium, CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France]
Boudard, A. [CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France]
Cugnon, Joseph mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
David, J.-C. [CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France]
Gorbinet, T. [CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France]
Leray, S. [CEA, Centre de Saclay, IRFU/Service de Physique Nucléaire, F-91191 Gif-sur-Yvette, France]
2011
Physical Review. C, Nuclear Physics
American Physical Society
84
6
Yes (verified by ORBi)
0556-2813
1089-490X
College Park
MD
[en] We use the tools of hybrid intranuclear-cascade/nuclear-deexcitation models to evaluate the sensitivity of several physical observables to the inclusion of a multifragmentation stage in the deexcitation chain and assess the need for a multifragmentation model in the quantitative description of p + 56Fe and p + 136Xe reactions at 1-GeV incident energy. We seek clear signatures of multifragmentation by comparing different state-of-the-art deexcitation models coupled with intranuclear-cascade models and by focusing on discriminating observables such as correlations and fragment longitudinal-velocity distributions. None of the considered observables can be unambiguously interpreted as a multifragmentation footprint. The experimental data are best described as originating from sequential binary decays. However, no deexcitation model can reproduce the experimental longitudinal-velocity distributions from 1-GeV p + 136Xe. © 2011 American Physical Society.
http://hdl.handle.net/2268/138658
10.1103/PhysRevC.84.064615

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