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  Collinear Laser Spectroscopy of Potassium : Nuclear Charge Radii beyond N = 28

Kreim, K. D. (2013). Collinear Laser Spectroscopy of Potassium: Nuclear Charge Radii beyond N = 28. PhD Thesis, Ruprecht-Karls-Universität, Heidelberg.

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22.05.13.Thesis_Kim_Kreim.pdf (Any fulltext), 7MB
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 Creators:
Kreim, Kim Dieter1, Author           
Blaum, Klaus, Referee
Jochim, Selim2, Referee
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1Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society, ou_904548              
2Universität Heidelberg, ou_persistent22              

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 Abstract: Nuclear ground-state properties, such as spin, charge radius, and magnetic dipole and electric quadrupole moments are important quantities to describe the nucleus. The comparison of experimental data to shell-model calculations gives insight in the underlying nuclear structure and composition of ground-state wave functions. Spins and charge radii can also be used to test the predictions of state-of-the-art microscopic models. This work contributes to these studies providing new measurements in the region of the nuclear chart around the magic proton number Z = 20. The data have been obtained at the collinear laser spectroscopy setup COLLAPS located at the radioactive-ion-beam facility ISOLDE at CERN. Using bunched-beam laser spectroscopy hyperfine structure spectra of the potassium isotopes with mass number A = 48 - 51 could be recorded for the first time. Ground-state spins and isotope shifts could be deduced for 48-51K contributing to the evolution of the πd3=2 orbital beyond the shell closure at the magic neutron number N = 28. Charge radii deduced from isotope shifts provide information towards the systematics of the charge radii in the calcium region beyond the N = 28 shell closure. While theoretical calculations predict the correct spins, the charge radii still provide a challenge even to the newest relativistic mean-field and coupled cluster models.

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Language(s): eng - English
 Dates: 2013-07-16
 Publication Status: Accepted / In Press
 Pages: VII, 89 S. : graph. Darst.
 Publishing info: Heidelberg : Ruprecht-Karls-Universität
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: PhD

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