Positive even-odd effects in the maximal kinetic energy and negative even-odd effects in the minimal excitation energy of fragments from thermal neutron induced fission of ${}^{235}$U

Based on the Coulomb effect hypothesis it is shown that positive even-odd effects of the maximal total kinetic energy ($K_{\max}$) and negative even-odd effects of the total minimal excitation energy ($X_{\max}$), as a function of charge ($Z$) and neutron number ($A$) of fragments, respectively, are...

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Detalles Bibliográficos
Autores: Montoya, M., Collin, V.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2017
País:México
Institución:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repositorio:Revista Mexicana de Física
Idioma:inglés
OAI Identifier:oai:ojs2.rmf.smf.mx:article/326
Acceso en línea:https://rmf.smf.mx/ojs/index.php/rmf/article/view/326
Access Level:acceso abierto
Palabra clave:cold fission
even-odd effect
kinetic energy
uranium 235
Descripción
Sumario:Based on the Coulomb effect hypothesis it is shown that positive even-odd effects of the maximal total kinetic energy ($K_{\max}$) and negative even-odd effects of the total minimal excitation energy ($X_{\max}$), as a function of charge ($Z$) and neutron number ($A$) of fragments, respectively, are not in contradiction. According to the Coulomb effect hypothesis, $K_{\max}$ is equal to the maximal Coulomb interaction energy ($C_{\max}$) reached by the most compact scission configuration. The fragmentation corresponding to $Z =41$ and $A=103$ is an exceptional case for which scission configuration is formed by complementary fragments in their corresponding ground states. However, more symmetrical o more asymmetrical fragmentations than that need to be out of their ground states, which implies that $K_{\max}=C_{\max}< Q $ % $.