Study of the ( $p, t$ ) Reaction on the Even Gadolinium Nuclei

The (

p, t

) reaction has been studied at 18 MeV on all the stable even-even Gd targets. A strong population of both

0^{+}

and

2^{+}

excited states has been found; the

0^{+}

(

β

vibrations) in the deformed nuclei are all

\approx 15 %

of the ground-state cross sections. The shape transition at

N = 88

is observed in the

{}^{154}{Gd} (p, t) {}^{152}{Gd}

reaction: Two excited

0^{+}

states are strongly populated. In the deformed Gd nuclei, a distinction between

K = 0

and

K = 2 2^{+}

states can be made on the basis of the shapes of their angular distributions. The spectrum observed in the

{}^{152}{Gd} (p, t) {}^{150}{Gd}

reaction is characteristic of that expected on spherical nuclei, with a relatively strong population of an excited

0^{+}

state. Distorted-wave Born-approximation calculations are highly successful in fitting the

0^{+}

transitions but, generally, not the

2^{+}

and higher spin states.

This publication has 67 references indexed in Scilit:

Study of the (p,t) Reaction on the Even Gadolinium Nuclei