The (p,t) Reaction to Positive Parity States in 165Er

Abstract

<p> Positive parity states in 165Er have been studied using the 167Er (p,t) 165Er reaction. The outgoing tritons were analyzed with a magnetic spectrograph at 13 angles between 6° and 70°. Two 7/2+ states at excitation energies of 63 and 465 keV were populated via ℓ≠0 transitions. Because of the lack of a pronounced minimum in the 1=0 angular distributions, some ℓ≠0 strength may contribute to the populating processes. Eight ℓ≠0 transitions were seen below 1 MeV excitation energy. A description of the observed positive parity levels has been attempted in the context of a Coriolis coupled Nilsson model calculation. </p>