Nuclear structure studies in the lead region with (d.p) reactions
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North Holland Publishing
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Las distribuciones de energía de los tritones de las reacciones (d, t) en los isótopos de Pb, Bi y T1 se midieron con una resolución de ≈ 100 keV. Se proporciona evidencia sobre la ubicación del estado h 2/3 faltante en Pb 207. Como se esperaba teóricamente, el espectro de Pb 208 (d, t) es cuantitativamente similar al de Pb 206 (d, t) excepto que todos los niveles son dividirse en dos o más componentes. Las energías de los estados excitados por Pb 207 (d, t) concuerdan bien con las predichas por el cálculo de True y Ford. Las secciones transversales para excitarlos concuerdan razonablemente bien con los cálculos de las funciones de onda de True y Ford; pero se sugieren varios cambios en este último, incluida una reducción de la configuración (p 1/2)-2 en el estado fundamental del 73 % a aproximadamente el 55 %. El estado 0+ largamente buscado aparentemente ocurre a 1,19 MeV. Los espectros de Pb 206 (d, t) y de Tl 205 (d, t) muestran marcadas similitudes entre sí y una similitud general con el espectro de Pb 208 (d, t); se muestra que esto es de esperar. En general, el modelo de capa de la estructura nuclear con la teoría de la reacción inversa de separación proporciona una explicación cuantitativa satisfactoria de todos los datos.
Energy distributions of tritons from (d, t) reactions in the isotopes of Pb, Bi and T1 were measured with ≈ 100 keV resolution. Evidence is given on the location of the missing h 2/3 state in Pb 207. As theoretically expected, the spectrum from Pb 208 (d, t) is quantitatively similar to that from Pb 206 (d, t) except that all levels are split into two or more components. The energies of the states excited by Pb 207 (d, t) agree well with those predicted from the True and Ford calculation. The cross sections for exciting these agree reasonably well with calculations from the True and Ford wave functions; but several changes in the latter are suggested, including a reduction of the (p 1/2)-2 configuration in the ground state from 73 % to about 55 %. The long sought 0 + state apparently occurs at 1.19 MeV. The spectra from Pb 206 (d, t) and from Tl 205 (d, t) show marked similarities to each other and a general similarity with the spectrum from Pb 208 (d, t) ; it is shown that this is to be expected. In general, the shell model of nuclear structure with inverse stripping reaction theory gives a satisfactory quantitative explanation of all the data.
Energy distributions of tritons from (d, t) reactions in the isotopes of Pb, Bi and T1 were measured with ≈ 100 keV resolution. Evidence is given on the location of the missing h 2/3 state in Pb 207. As theoretically expected, the spectrum from Pb 208 (d, t) is quantitatively similar to that from Pb 206 (d, t) except that all levels are split into two or more components. The energies of the states excited by Pb 207 (d, t) agree well with those predicted from the True and Ford calculation. The cross sections for exciting these agree reasonably well with calculations from the True and Ford wave functions; but several changes in the latter are suggested, including a reduction of the (p 1/2)-2 configuration in the ground state from 73 % to about 55 %. The long sought 0 + state apparently occurs at 1.19 MeV. The spectra from Pb 206 (d, t) and from Tl 205 (d, t) show marked similarities to each other and a general similarity with the spectrum from Pb 208 (d, t) ; it is shown that this is to be expected. In general, the shell model of nuclear structure with inverse stripping reaction theory gives a satisfactory quantitative explanation of all the data.