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Correlaciones protón-protón observadas en la radioactividad de dos protones de 94AgAg
Ivan Mukha1, Ernst Roeckl, Leonid Batist
1Gesellschaft für Schwerionenforschung, D-64291 Darmstadt, Germany. I.Mukha@gsi.de
Nature
|January 20, 2006
Resumen
El isótopo de plata más ligero, 94Ag, exhibe radioactividad de uno y dos protones. Este comportamiento único de descomposición está vinculado al núcleo.
Área de la Ciencia:
- Física nuclear es la física nuclear.
- Estudios de decaimiento radiactivo Estudios de decaimiento radiactivo.
Sus antecedentes:
- La radioactividad natural y la desintegración nuclear se han estudiado desde 1896.
- Se predijo que los núcleos ricos en protones se desintegrarían a través de la emisión de uno o dos protones.
- La radioactividad de un protón se observó en 1982; la radioactividad de dos protones se ha detectado en isótopos como 45Fe y 54Zn.
Objetivo del estudio:
- Para investigar las propiedades de desintegración del isótopo de plata más ligero conocido, 94Ag.
- Explorar la posibilidad de la emisión simultánea de protones en la desintegración nuclear.
Principales métodos:
- Estudiando las correlaciones protón-protón durante la desintegración radiactiva de un estado de larga vida giratoria de 94Ag.
- Análisis experimental de las características de desintegración nuclear.
Principales resultados:
- Se observaron correlaciones protón-protón en la desintegración del 94Ag.
- Inferida emisión simultánea de dos protones a partir del estado de larga vida de 94Ag.
- Identificó el 94Ag como el primer núcleo que exhibió radioactividad de uno y dos protones.
Conclusiones:
- Los patrones de desintegración observados sugieren una forma muy deformada y prolada del núcleo 94Ag.
- Esta deformación facilita la emisión de dos protones, lo que explica el mecanismo de desintegración y su alta probabilidad.
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