Journal article

Publication year: 2008

Journal: Physical Review Letters

Volume number: 101

Issue number: 21

ISSN: 0031-9007

eISSN: 1079-7114

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevLett.101.212502

Publisher: American Physical Society

Abstract: 
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.

Harvard Citation style: Okada, K., Wada, M., Nakamura, T., Takamine, A., Lioubimov, V., Schury, P., et al. (2008) Precision Measurement of the Hyperfine Structure of Laser-Cooled Radioactive ⁷Be⁺ Ions Produced by Projectile Fragmentation, Physical Review Letters, 101(21), Article 212502. https://doi.org/10.1103/PhysRevLett.101.212502

APA Citation style: Okada, K., Wada, M., Nakamura, T., Takamine, A., Lioubimov, V., Schury, P., Ishida, Y., Sonoda, T., Ogawa, M., Yamazaki, Y., Kanai, Y., Kojima, T., Yoshida, A., Kubo, T., Katayama, I., Ohtani, S., Wollnik, H., & Schuessler, H. (2008). Precision Measurement of the Hyperfine Structure of Laser-Cooled Radioactive ⁷Be⁺ Ions Produced by Projectile Fragmentation. Physical Review Letters. 101(21), Article 212502. https://doi.org/10.1103/PhysRevLett.101.212502