Single neutron pick-up on 104Pd

Abstract

Low-lying levels of 103 Pd have been investigated through the (d,t) reaction on 104 Pd, at an incident deuteron energy of 15.0 MeV. Outgoing particles were momentum analyzed by an Enge magnetic spectrograph and detected in nuclear emulsion plates, with an energy resolution of 8 keV. Previous (d,t) work suffered from a much worse resolution than that here achieved. A partial analysis of the data obtained is reported, referring to six out of the fourteen scattering angles for which data were obtained. Angular distributions associated with eight of the thirteen levels seen up to 1.1 MeV of excitation have been compared to DWBA one-neutron pick-up predictions. Both, the attributed excitation energy values and the transferred angular momenta are in excellent agreement with the results of other kind of experiments, as tabulated by the Nuclear Data Sheets. Some peculiar structure characteristics, associated with the yrast 5/2 + , 3/2 + and 7/2 + states found in the Ru chain could be recognized also in 103 Pd, pointing to the possibility of a more global understanding of this transitional mass region.

High resolution study of 104Pd(d,t)103Pd

“…Due to the characteristics of the Pelletron-EngeSpectrograph arrangement and to the use of the nuclear emulsion detection technique, resolutions as high as 7-8 keV are attained in (d,t) measurements by the S.Paulo Group [4][5][6]. The energy resolution achieved in the triton spectra depends on the careful determination of the focal plane of the respective reaction, the use of nuclear emulsion as detectors, on the possibility of producing thin, clean and uniform targets, on the definition of an adequate spectrograph object and on the good resolution of the beam.…”

“…The present paper refers to a high resolution study of the 104 Pd(d,t) 103 Pd reaction with an incident deuteron energy of 15.0 MeV. Preliminary results based on a partial analysis, have been presented previously [6]. The analysis has been extended to the 14 scattering angles measured and, with respect to the preliminary results based on only 6 angles, more information could be gathered, specially for weakly excited states.…”