Welcome to AG Nörtershäuser

from left to right: Johannes Viering, Phillip Imgram, Konstantin Mohr, Felix Sommer, Tim Ratajczyk, Simon Kaufmann, Jörg Krämer, Bernhard Maaß, Aineah Barasa, Kristian König, Rodolfo Sánchez, Tim Lellinger, Zoran Andelkovic, Wilfried Nörtershäuser

Laser spectroscopic nuclear chart

Our Service to the Community:
An up-to-date nuclear chart with all isotopes that have been investigated by on-line laser spectroscopy, tables and references is provided here …>

Current News

• 2020/05/26

  Proposal for a Raman Filter featured as “Editors' Suggestion” in Phys. Rev. A

  

  We have studied the possibility of using a Raman scheme to transfer ions within a beam from the ground to a higher-lying metastable state with high-velocity selectivity. This could find important applications in high-precision laser spectroscopy and optical high-voltage measurements.
  The paper has been published in Physical Review A today and has been featured as an “Editors' Suggestion”. go

• 2020/05/11

  New Article on Properties of Neutron Matter

  

  The differences of charge radii of mirror nuclei – nuclei with exchanged numbers of protons and neutrons – provide information on the equation of state (EOS) of neutron matter. The differences of the recently measured charge radii of 36,38Ca and those of their stable mirror partner ³⁶S and ³⁸Ar allowed us to restrict a parameter of the EOS. go

• 2020/04/21

  New Measurements on the Accuracy of Wavemeters

  

  A series of two articles on the accuracy of commercial wavemeters has appeared in Applied Physics B.
  The first part by Verlinde et al. is the product of a collaboration of several groups using wavemeters for nuclear-structure related research at on-line facilities. All participating groups are members of the LASPEC collaboration to perform laser spectroscopy at FAIR. go

• 2020/04/01

  Measurement of the charge radius of Ni-68 published in PRL

  

  For the first time, a short-lived Ni isotope was studied by laser spectroscopy at ISOLDE. We have determined the charge radius of Ni-68 and the result is compared to calculations using chiral effective field theory.
  Ni-68 is now the only short-lived nucleus for which the charge radius and the nuclear dipole polarizability are determined, which allows to benchmark the correlations between these observables that are obtained in nuclear theory. go

• 2020/03/26

  Our new measurement of the magnetic moment of Pb-207 has been published

  

  Our new measurement of the magnetic moment of Pb-207 by Nuclear Magnetic Resonance (NMR) has been published in Physical Review Research.
  By combining complex chemistry in the preparation of the hexa-fluorido-plumbate [PbF₆]²⁻ ion, sensitive NMR measurements, and highly accurate relativistic calculations of the shielding corrections, we report an improved value that is considerably different to the tabulated one. go

• 2020/01/20

  Bernhard Maaß defends his PhD thesis successfully

  

  Bernhard Maaß defended his Dissertation entitled “Laser Spectroscopy of the Boron Isotopic Chain” and passed the oral exam with distinction. Congratulations from the whole team Bernhard! go