### 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 language | English |
---|---|

Pages (from-to) | 116-126 |

Number of pages | 11 |

Journal | Physical Review C - Nuclear Physics |

Volume | 58 |

Issue number | 1 |

DOIs | |

Publication status | Published - Jan 1 1998 |

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### All Science Journal Classification (ASJC) codes

- Nuclear and High Energy Physics

### Cite this

*Physical Review C - Nuclear Physics*,

*58*(1), 116-126. https://doi.org/10.1103/PhysRevC.58.116

**Nuclear structure of [Formula Presented] by the three-neutron pickup [Formula Presented] reaction.** / Guimarães, V.; Kubono, S.; Ikeda, N.; Katayama, I.; Nomura, T.; Tanaka, M. H.; Fuchi, Y.; Kawashima, H.; Kato, S.; Toyokawa, H.; Yun, C. C.; Niizeki, T.; Kubo, T.; Ohura, M.; Hosaka, M.

Research output: Contribution to journal › Article

*Physical Review C - Nuclear Physics*, vol. 58, no. 1, pp. 116-126. https://doi.org/10.1103/PhysRevC.58.116

}

TY - JOUR

T1 - Nuclear structure of [Formula Presented] by the three-neutron pickup [Formula Presented] reaction

AU - Guimarães, V.

AU - Kubono, S.

AU - Ikeda, N.

AU - Katayama, I.

AU - Nomura, T.

AU - Tanaka, M. H.

AU - Fuchi, Y.

AU - Kawashima, H.

AU - Kato, S.

AU - Toyokawa, H.

AU - Yun, C. C.

AU - Niizeki, T.

AU - Kubo, T.

AU - Ohura, M.

AU - Hosaka, M.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0040579282&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevC.58.116

DO - 10.1103/PhysRevC.58.116

M3 - Article

AN - SCOPUS:0040579282

VL - 58

SP - 116

EP - 126

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 1

ER -