Universität zu Köln

Kusoglu, A., Stuchbery, A. E., Georgiev, G., Brown, B. A., Goasduff, A., Atanasova, L., Balabanski, D. L., Bostan, M., Danchev, M., Detistov, P., Gladnishki, K. A., Ljungvall, J., Matea, I., Radeck, D., Sotty, C., Stefan, I., Verney, D. and Yordanov, D. T. (2015). Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 2(1)(+) State in Mg-24. Phys. Rev. Lett., 114 (6). COLLEGE PK: AMER PHYSICAL SOC. ISSN 1079-7114

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Abstract

A precise measurement of the g factor of the first-excited state in the self-conjugate (N = Z) nucleus Mg-24 is performed by a new time-differential recoil-in-vacuum method based on the hyperfine field of hydrogenlike ions. Theory predicts that the g factors of such states, in which protons and neutrons occupy the same orbits, should depart from 0.5 by a few percent due to configuration mixing and meson-exchange effects. The experimental result, g = 0.538 +/- 0.013, is in excellent agreement with recent shell-model calculations and shows a departure from 0.5 by almost 3 standard deviations, thus achieving, for the first time, the precision and accuracy needed to test theory. Proof of the new method opens the way for wide applications including measurements of the magnetism of excited states of exotic nuclei produced as radioactive beams.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Kusoglu, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stuchbery, A. E. UNSPECIFIED UNSPECIFIED UNSPECIFIED Georgiev, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Brown, B. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Goasduff, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Atanasova, L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Balabanski, D. L. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bostan, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Danchev, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Detistov, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Gladnishki, K. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ljungvall, J. UNSPECIFIED UNSPECIFIED UNSPECIFIED Matea, I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Radeck, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sotty, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Stefan, I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Verney, D. UNSPECIFIED UNSPECIFIED UNSPECIFIED Yordanov, D. T. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-407663
DOI:	10.1103/PhysRevLett.114.062501
Journal or Publication Title:	Phys. Rev. Lett.
Volume:	114
Number:	6
Date:	2015
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	1079-7114
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Physics, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/40766