Bρ-defined isochronous mass spectrometry: An approach for high-precision mass measurements of short-lived nuclei

被引：21

作者：

Wang, M. ^{[1
,2
]}

Zhang, M. ^{[1
,2
]}

Zhou, X. ^{[1
,2
]}

Zhang, Y. H. ^{[1
,2
]}

Litvinov, Yu. A. ^{[1
,3
]}

Xu, H. S. ^{[1
,2
]}

Chen, R. J. ^{[1
,3
]}

Deng, H. Y. ^{[1
,2
]}

Fu, C. Y. ^{[1
]}

Ge, W. W. ^{[1
]}

Li, H. F. ^{[1
,2
]}

Liao, T. ^{[1
,2
]}

Litvinov, S. A. ^{[1
,3
]}

Shuai, P. ^{[1
]}

Shi, J. Y. ^{[1
,2
]}

Si, M. ^{[1
,2
]}

Sidhu, R. S. ^{[3
]}

Song, Y. N. ^{[1
,2
]}

Sun, M. Z. ^{[1
]}

Suzuki, S. ^{[1
]}

Wang, Q. ^{[1
,2
]}

Xing, Y. M. ^{[1
]}

Xu, X. ^{[1
]}

Yamaguchi, T. ^{[4
]}

Yan, X. L. ^{[1
]}

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

Yuan, Y. J. ^{[1
,2
]}

Zeng, Q. ^{[5
]}

Zhou, X. H. ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Modern Phys, CAS Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China

[2] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China

[3] GSI Helmholtzzentrum Schwerionenforsch, Planckstr 1, D-64291 Darmstadt, Germany

[4] Saitama Univ, Dept Phys, Saitama 3388570, Japan

[5] East China Univ Technol, Sch Nucl Sci & Engn, Nanchang 330013, Peoples R China

来源：

PHYSICAL REVIEW C | 2022年 / 106卷 / 05期

基金：

国家重点研发计划; 欧洲研究理事会;

关键词：

CR STORAGE-RING; EXOTIC NUCLEI; PROJECT; IONS;

D O I：

10.1103/PhysRevC.106.L051301

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：

A technique for broadband high-precision mass measurements of short-lived exotic nuclides is reported. It is based on the isochronous mass spectrometry (IMS) and realizes simultaneous determinations of revolution time and velocity of short-lived stored ions at the cooler storage ring CSRe in Lanzhou. The technique, named the B rho-defined IMS or B rho-IMS, boosts the efficiency, sensitivity, and accuracy of mass measurements, and is applied here to measure masses of neutron-deficient fp-shell nuclides. In a single accelerator setting, masses of 46Cr, 50Fe, and 54Ni are determined with relative uncertainties of (5-6)x10-8, thereby improving the input data for testing the unitarity of the Cabibbo-Kobayashi-Maskawa quark mixing matrix. This is the technique of choice for future high-precision measurements of the most rarely produced shortest-lived nuclides.

引用

页数：7

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