Laser Spectroscopy of Thulium Isotopes Near the N=82 Shell Closure: Nuclear Moment and Charge Radius of ^152mTm

@misc{weyrich2026laser,
  title = {{Laser Spectroscopy of Thulium Isotopes Near the $N=82$ Shell Closure: Nuclear Moment and Charge Radius of $^152\mathrmm\mathrmTm$}},
  author = {Jana Weyrich and Kenneth van Beek and Harshithbabu and Aayush Arya and Sebastian Berndt and Michael Block and Alexandre Brizard and Premaditya Chhetri and Arno Claessens and Christoph Emanuel Düllmann and Rafael Ferrer and Sarina Geldhof and Francesca Giacoppo and Manuel J. Gutierrez and Raphael Hasse and Christian Helmel and Fritz Peter Heßberger and Julian Hindermann and Fedor Ivandikov and Biswajit Jana and Tom Kieck and Mustapha Laatiaoui and Nathalie Lecesne and Andrew Mistry and Danny Münzberg and Thorben Niemeyer and Sebastian Raeder and Elisabeth Rickert and Daniel Rodriguez and Herve Savajols and Matou Stemmler and Dominik Studer and Thomas Walther and Jessica Warbinek and Piet Van Duppen and Klaus Wendt},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2607.25033},
  eprint = {2607.25033},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.25033},
}

TY  - UNPB
TI  - Laser Spectroscopy of Thulium Isotopes Near the N=82 Shell Closure: Nuclear Moment and Charge Radius of ^152mTm
AU  - Jana Weyrich
AU  - Kenneth van Beek
AU  - Harshithbabu
AU  - Aayush Arya
AU  - Sebastian Berndt
AU  - Michael Block
AU  - Alexandre Brizard
AU  - Premaditya Chhetri
AU  - Arno Claessens
AU  - Christoph Emanuel Düllmann
AU  - Rafael Ferrer
AU  - Sarina Geldhof
AU  - Francesca Giacoppo
AU  - Manuel J. Gutierrez
AU  - Raphael Hasse
AU  - Christian Helmel
AU  - Fritz Peter Heßberger
AU  - Julian Hindermann
AU  - Fedor Ivandikov
AU  - Biswajit Jana
AU  - Tom Kieck
AU  - Mustapha Laatiaoui
AU  - Nathalie Lecesne
AU  - Andrew Mistry
AU  - Danny Münzberg
AU  - Thorben Niemeyer
AU  - Sebastian Raeder
AU  - Elisabeth Rickert
AU  - Daniel Rodriguez
AU  - Herve Savajols
AU  - Matou Stemmler
AU  - Dominik Studer
AU  - Thomas Walther
AU  - Jessica Warbinek
AU  - Piet Van Duppen
AU  - Klaus Wendt
PY  - 2026
DA  - 2026/10/06
PB  - arXiv
DO  - 10.48550/arxiv.2607.25033
UR  - https://arxiv.org/abs/2607.25033
AB  - We report on resonance ionization laser spectroscopy measurements performed on both neutron-deficient and neutron-rich thulium (Tm, Z=69) isotopes. Isotope shifts were determined for three atomic ground-state transitions at wavelengths of 389.8 nm, 388.4 nm, and 388.8 nm in the isotopes ^152mTm, ^153Tm, ^154mTm, and ^169Tm. In addition, for the 389.8 nm transition, measurements were extended to the isotope ^170Tm, and the hyperfine structure was partially resolved for all five isotopes. For this transition, the isotope shift could be determined for one more isotope, ^154mTm. From the extracted hyperfine coupling constants, the nuclear magnetic dipole moment for ^152mTm was determined for the first time, resulting in μ(^152mTm) = 5.8(3) μ_N. Furthermore, the mean-square nuclear charge radius δ⟨ r^2⟩^152m,169 = −1.87(17) fm^2 for ^152mTm was extracted from the measured isotope shifts.
ER  -