Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24

A precise measurement of the g factor of the first-excited state in the self-conjugate (N=Z) nucleus Mg24 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 neutron...

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Autores principales: 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, Yordanov, D  T
Lenguaje:eng
Publicado: 2015
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.114.062501
http://cds.cern.ch/record/2153721
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author 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
Yordanov, D  T
author_facet 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
Yordanov, D  T
author_sort Kusoglu, A
collection CERN
description A precise measurement of the g factor of the first-excited state in the self-conjugate (N=Z) nucleus Mg24 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.
id oai-inspirehep.net-1346142
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling oai-inspirehep.net-13461422022-08-10T13:07:21Zdoi:10.1103/PhysRevLett.114.062501http://cds.cern.ch/record/2153721engKusoglu, AStuchbery, A  EGeorgiev, GBrown, B  AGoasduff, AAtanasova, LBalabanski, D  LBostan, MDanchev, MDetistov, PGladnishki, K  ALjungvall, JMatea, IRadeck, DSotty, CStefan, IVerney, DYordanov, D  TMagnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24Nuclear Physics - ExperimentA precise measurement of the g factor of the first-excited state in the self-conjugate (N=Z) nucleus Mg24 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.oai:inspirehep.net:13461422015
spellingShingle Nuclear Physics - Experiment
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
Yordanov, D  T
Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title_full Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title_fullStr Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title_full_unstemmed Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title_short Magnetism of an Excited Self-Conjugate Nucleus: Precise Measurement of the g Factor of the 21+ State in Mg24
title_sort magnetism of an excited self-conjugate nucleus: precise measurement of the g factor of the 21+ state in mg24
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1103/PhysRevLett.114.062501
http://cds.cern.ch/record/2153721
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