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Internal and kinetic temperatures of fragments in the framework of a nuclear statistical multifragmentation model

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Internal and kinetic temperatures of fragments in the framework of a nuclear statistical multifragmentation model

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Título Internal and kinetic temperatures of fragments in the framework of a nuclear statistical multifragmentation model
Autor Souza, Sergio Ricardo de Azevedo
Carlson, Brett Vern
Donangelo, Raul José
Lynch, William G.
Tsang, M. B.
Abstract The agreement between the fragments’ internal and kinetic temperatures with the breakup temperature is investigated using a statistical multifragmentation model, whichmakes no a priori assumption on the relationship between them. We thus examine the conditions for obtaining such agreement and find that, in the framework of our model, this holds only in a relatively narrow range of excitation energy. The role played by the qualitative shape of the fragments’ state densities is also examined. Our results suggest that the internal temperature of the light fragments may be affected by this quantity, whose behavior may lead to constant internal temperatures over a wide excitation energy range. It thus suggests that the nuclear thermometry may provide valuable information on the nuclear state density.
Contido em Physical review. C, Nuclear physics. Melville. Vol. 92, no. 2 (Aug. 2015), 024612, 8 p.
Assunto Fragmentação nuclear
Modelos nucleares
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/126966
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