Mass measurements of neutron-rich isotopes near N=20 by in-trap decay with the ISOLTRAP spectrometer

被引：6

作者：

Ascher, P. ^{[1
]}

Althubiti, N. ^{[2
,3
]}

Atanasov, D. ^{[4
,12
]}

Blaum, K. ^{[4
]}

Cakirli, R. B. ^{[5
]}

Grevy, S. ^{[1
]}

Herfurth, F. ^{[6
]}

Kreim, S. ^{[4
]}

Lunney, D. ^{[7
]}

Manea, V ^{[8
,12
]}

Neidherr, D. ^{[6
]}

Rosenbusch, M. ^{[9
]}

Schweikhard, L. ^{[10
]}

Welker, A. ^{[11
]}

Wienholtz, F. ^{[10
]}

Wolf, R. N. ^{[4
,13
]}

Zuber, K. ^{[11
]}

机构：

[1] Ctr Etud Nucl Bordeaux Gradignan, Gradignan, France

[2] Univ Manchester, Sch Phys & Astron, Manchester, Lancs, England

[3] Jouf Univ, Fac Sci, Phys Dept, Aljouf, Saudi Arabia

[4] Max Planck Inst Kernphys, Heidelberg, Germany

[5] Istanbul Univ, Dept Phys, TR-34134 Istanbul, Turkey

[6] GSI Helmholtzzentrum Schwerionenforsch GmbH, Darmstadt, Germany

[7] Univ Paris Sud, CSNSM CNRS IN2P3, Orsay, France

[8] CERN, Expt Phys Dept, Geneva, Switzerland

[9] RIKEN Nishina Ctr, Wako, Saitama 3510198, Japan

[10] Ernst Moritz Arndt Univ Greifswald, Inst Phys, D-17487 Greifswald, Germany

[11] Tech Univ Dresden, Inst Kern & Teilchenphys, Dresden, Germany

[12] Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Leuven, Belgium

[13] Univ Sydney, ARC Ctr Excellence Engn Quantum Syst, Sch Phys, Sydney, NSW, Australia

来源：

PHYSICAL REVIEW C | 2019年 / 100卷 / 01期

关键词：

BETA-DECAY; SI-34; AL-34; EXCITATION; ACCURACY; FEATURES; STATES; ISLAND; IONS;

D O I：

10.1103/PhysRevC.100.014304

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The masses of Si-34, Mg-33,Mg-34, and Al-34 have been measured with the ISOLTRAP Penning-trap spectrometer at ISOLDE/CERN. The results are in agreement with previous mass measurements and uncertainties have been decreased. The mass of Al-34 was determined in two configurations, one following direct production by the ISOLDE facility, favoring the 4(-) state, expected to be the ground state, second by in-trap decay of Mg-34, followed by recoil-ion trapping, favoring the production of the isomeric 1(+) state. A position-sensitive detector was used to clean the ToF-ICR resonance. In addition, the mass of the refractory doubly magic Si-34 nucleus was directly measured, using the in-trap decay of Mg-34, following two sequential recoil-ion captures. The approach, challenges and conclusions are discussed.

引用

页数：9

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