Mass determination near N=20 for Al and Na isotopes

被引：10

作者：

Gallant, A. T. ^{[1
,2
,10
]}

Alanssari, M. ^{[3
]}

Bale, J. C. ^{[1
,2
]}

Andreoiu, C. ^{[4
]}

Barquest, B. R. ^{[2
]}

Chowdhury, U. ^{[2
,5
,11
]}

Even, J. ^{[2
,12
]}

Finlay, A. ^{[1
,2
]}

Frekers, D. ^{[3
]}

Gwinner, G. ^{[5
]}

Klawitter, R. ^{[2
,6
]}

Kootte, B. ^{[2
,5
]}

Kwiatkowski, A. A. ^{[2
,7
]}

Lascar, D. ^{[2
]}

Leach, K. G. ^{[2
,4
,13
]}

Leistenschneider, E. ^{[1
,2
]}

Lennarz, A. ^{[2
,3
]}

Mayer, A. J. ^{[8
]}

Short, D. ^{[2
,4
]}

Thompson, R. ^{[8
]}

Wieser, M. ^{[8
]}

Lunney, D. ^{[9
]}

Dilling, J. ^{[1
,2
]}

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[2] TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada

[3] Westfalische Wilhelms Univ, Inst Kernphys, D-48149 Munster, Germany

[4] Simon Fraser Univ, Dept Chem, Burnaby, BC V5A 1S6, Canada

[5] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada

[6] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[7] Texas A&M Univ, Inst Cyclotron, Dept Phys & Astron, College Stn, TX 77843 USA

[8] Univ Calgary, Dept Phys & Astron, Calgary, AB T2N 1N4, Canada

[9] Univ Paris 11, CNRS, IN2P3, CSNSM, F-91405 Orsay, France

[10] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94550 USA

[11] SNOLAB, 1039 Reg Rd 24, Lively, ON P3Y 1N2, Canada

[12] Univ Groningen, KVI Ctr Adv Radiat Technol, NL-9747 AA Groningen, Netherlands

[13] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

来源：

PHYSICAL REVIEW C | 2017年 / 96卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

TRUE CYCLOTRON FREQUENCY; NEUTRON-RICH NUCLEI; PENNING-TRAP; HIGH-PRECISION; ACCURACY; SPECTROMETER; OPERATION; STABILITY; TITAN; IONS;

D O I：

10.1103/PhysRevC.96.024325

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：

We report on the mass measurements of Na-31,Na-32 and Al-29,Al-34,Al-35, performed with the TITAN Penning trap mass spectrometer at TRIUMF. The mass excesses were found to be 12246(14) and 18638(37) keV for Na-31,Na-32 and -18207.77(37), -3000.5(29), and -223.7(73) keV for Al-29,Al-34,Al-35, respectively. Our measurements confirm the observation of a crossover in the two-neutron separation energies of Mg-33 and Al-34. We did not observe the recently reported, long-lived, isomeric state of Al-34, but, based on the previously measured half-lives, the mass value of the ground state was determined.

引用

页数：5

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