Complex fragment emission from low energy compound nucleus decay to multifragmentation
نویسندگان
چکیده
منابع مشابه
Light Fragment Emission and Multifragmentation ?
Light fragments have been observed as a new class of products from heavy-ion collisions at intermediate energies. Two mechanisms which produce such light fragments are well understood but is seems difficult to characterize a third one identified within a moving source framework. From a large set of inclusive data, a few features are extracted and eventual signatures of a multifragmentation proc...
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The evolution of the symmetry energy coefficient of the binding energy of hot fragments with increasing excitation is explored in multifragmentation processes following heavy-ion collisions below the Fermi energy. In this work, high-resolution mass spectrometric data on isotopic distributions of projectile-like fragments are systematically compared to calculations involving the Statistical Mult...
متن کاملMass-asymmetric barriers from excitation functions for complex-fragment emission.
The conditional saddle-point heights (conditional barriers) that preside over the emission of complex fragments (Z = 2—11) from compound nuclei have been obtained from the excitation functions of individual fragments in the reaction He+""Ag. The magnitudes of the barriers and their dependence on mass asymmetry may be used to verify important features of the potential-energy surface including sh...
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equilibrium processes still pose a severe challenge to their theoretical description; thus, the realistic modelling of the fission process is far from being achieved at present times. This is a particular problem at low excitation energies, where the influence of nuclear structure is responsible for individual features, which are specific for each fissionning system. Thus, it is important to st...
متن کاملAngular momentum dependence of complex fragment emission.
The angular momentum dependence of large fragment production in long lived reactions is studied by measurements of fragment cross sections from reactions with substantially different angular momentum distributions and the coincident y-ray multiplicity distributions. The results indicate that the primary l-wave distributions move to larger mean values and decrease in width and skewness with incr...
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ژورنال
عنوان ژورنال: Czechoslovak Journal of Physics
سال: 1995
ISSN: 0011-4626,1572-9486
DOI: 10.1007/bf01688548