Precision Measurement of the Hyperfine Structure of Laser-Cooled Radioactive 7Be+ Ions Produced by Projectile Fragmentation

被引：50

作者：

Okada, K. ^{[1
]}

Wada, M. ^{[2
,3
]}

Nakamura, T. ^{[2
]}

Takamine, A. ^{[2
]}

Lioubimov, V. ^{[2
,8
]}

Schury, P. ^{[2
]}

Ishida, Y. ^{[2
]}

Sonoda, T. ^{[2
]}

Ogawa, M. ^{[4
]}

Yamazaki, Y. ^{[2
,4
]}

Kanai, Y. ^{[2
]}

Kojima, T. M. ^{[2
]}

Yoshida, A. ^{[3
]}

Kubo, T. ^{[3
]}

Katayama, I. ^{[5
]}

Ohtani, S. ^{[6
]}

Wollnik, H. ^{[7
]}

Schuessler, H. A. ^{[8
]}

机构：

[1] Sophia Univ, Dept Phys, Chiyoda Ku, Tokyo 1028554, Japan

[2] RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan

[3] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

[4] Univ Tokyo, Grad Sch Arts & Sci, Meguro Ku, Tokyo 1538902, Japan

[5] High Energy Accelerator Res Org, KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[6] Univ Electrocommun, Inst Laser Sci, Tokyo 1828585, Japan

[7] Univ Giessen, Inst Phys 2, D-6300 Giessen, Germany

[8] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.101.212502

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The ground state hyperfine splitting of Be-7(+) has been measured by laser-microwave double-resonance spectroscopy in the online rf trap of RIKEN's slow RI-beam facility. Be ions produced by projectile fragmentation of C-13 at approximate to 1 GeV were thermalized in a rf ion guide gas cell and subsequently laser cooled in the ion trap to approximate to 1 mu eV. This 10(15)-fold reduction of the kinetic energy allows precision spectroscopy of these ions. A magnetic hfs constant of A=-742.772 28(43) MHz was measured for Be-7(+), from which a nuclear magnetic moment of mu(I)=-1.399 28(2)mu(N) was deduced.

引用

页数：4

共 29 条

[1] THE INFLUENCE OF NUCLEAR STRUCTURE ON THE HYPERFINE STRUCTURE OF HEAVY ELEMENTS [J].

BOHR, A ;

WEISSKOPF, VF .

PHYSICAL REVIEW, 1950, 77 (01) :94-98

[2] Magnetic moments of mirror nuclei [J].

Buck, B ;

Merchant, AC ;

Perez, SM .

PHYSICAL REVIEW C, 2001, 63 (03) :373011-373014

[3] EFFECTIVE INTERACTIONS FOR 1P SHELL [J].

COHEN, S ;

KURATH, D .

NUCLEAR PHYSICS, 1965, 73 (01) :1-&

[4] OBSERVATION OF A PHASE-TRANSITION OF STORED LASER-COOLED IONS [J].

DIEDRICH, F ;

PEIK, E ;

CHEN, JM ;

QUINT, W ;

WALTHER, H .

PHYSICAL REVIEW LETTERS, 1987, 59 (26) :2931-2934

[5] Hyperfine anomaly of Be isotopes and anomalous large anomaly in 11Be [J].

Fujita, T ;

Ito, K ;

Suzuki, T .

PHYSICAL REVIEW C, 1999, 59 (01) :210-214

[6] MAGNETIC-MOMENT OF THE SHORT-LIVED BETA-EMITTER MG-23 [J].

FUKUDA, M ;

IZUMIKAWA, T ;

OHTSUBO, T ;

TANIGAKI, M ;

FUKUDA, S ;

NAKAYAMA, Y ;

MATSUTA, K ;

NOJIRI, Y ;

MINAMISONO, T .

PHYSICS LETTERS B, 1993, 307 (3-4) :278-282

[7] ANALYSIS OF THE MAGNETIC-MOMENTS OF MIRROR NUCLEI [J].

HANNA, SS ;

HUGG, JW .

HYPERFINE INTERACTIONS, 1985, 21 (1-4) :59-77

[8] CHEMICAL-SHIFT CORRECTION TO THE KNIGHT-SHIFT IN BERYLLIUM [J].

ITANO, WM .

PHYSICAL REVIEW B, 1983, 27 (03) :1906-1907

[9] Measurement of the magnetic moments of 7Be and of the halo nucleus 11Be [J].

Kappertz, S ;

Geithner, W ;

Katko, G ;

Keim, M ;

Kotrotsios, G ;

Lievens, P ;

Neugart, R ;

Vermeeren, L ;

Wilbert, S .

ENAM 98: EXOTIC NUCLEI AND ATOMIC MASSES, 1998, 455 :110-113

[10] Lasers for nuclear physics [J].

Kluge, HJ ;

Nörtershäuser, W .

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2003, 58 (06) :1031-1045

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