Nuclear structure of [Formula Presented] by the three-neutron pickup [Formula Presented] reaction

V. Guimarães, S. Kubono, N. Ikeda, I. Katayama, T. Nomura, M. H. Tanaka, Y. Fuchi, H. Kawashima, S. Kato, H. Toyokawa, C. C. Yun, T. Niizeki, T. Kubo, M. Ohura, M. Hosaka

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27 Citations (Scopus)

Abstract

The nuclear structure of [Formula Presented] has been studied by the [Formula Presented] reaction at 70 MeV. Thirteen levels were identified in [Formula Presented] and angular distributions have been measured for the first time for this reaction. Based on the observed transferred angular momentum dependence of the angular distributions, a spin-parity assignment has been made for several states in [Formula Presented] With the inclusion of the data on [Formula Presented] quartet analog states have been completed for six levels in the [Formula Presented] isobar system. The level shifts in these [Formula Presented] nuclei are analyzed in terms of the isobaric multiplet mass equation (IMME). The results of such an analysis show a slight linear dependence of the [Formula Presented] and [Formula Presented] coefficients of the equation on the excitation energy. The coefficients for the positive parity states seem to follow a different systematics than the negative parity states, suggesting that these parity-dependent level shifts are reflecting the structure change. These coefficients of the IMME are discussed.

Original languageEnglish
Pages (from-to)116-126
Number of pages11
JournalPhysical Review C - Nuclear Physics
Volume58
Issue number1
DOIs
Publication statusPublished - 1998

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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