Decay Modes of Giant Resonances in ${}^{58}{Ni}$ , ${}^{60}{Ni}$ , and ${}^{62}{Ni}$

The (

e

p

) and (

e

α

) cross sections for targets of

{}^{58}{Ni}

{}^{60}{Ni}

, and

{}^{62}{Ni}

have been measured in the electron energy range 16-50 MeV. They have been analyzed using the distorted-wave Born-approximation

E 1

and

E 2

virtual-photon spectra. Protons are emitted primarily following

E 1

absorption but

α

emission results from a combination of

E 1

and

E 2

absorption. The

E 2

isoscalar giant resonance decays predominantly by

α

emission for these nuclei.

This publication has 5 references indexed in Scilit:

Decay Modes of Giant Resonances inNi58,Ni60, andNi62