ISOLDE Workshop and Users meeting 2021

Session

Ground state properties

14 Dec 2021, 11:25

Conveners

Ground state properties

• Iain Moore

Ground state properties

• Iain Moore

42. Recent results of collinear laser spectroscopy of magic lead isotopes

Dr Liss Vazquez Rodriguez (CERN)

14/12/2021, 11:25

Invited

High-resolution collinear laser spectroscopy has been recently performed on a long sequence of lead (Z = 82) isotopes using the COLLAPS instrumentation at ISOLDE/ CERN. Hyperfine structures and isotope shifts have been measured and high-precision values of electromagnetic moments and isomeric differences in charge radii between the lowest 3/2, 5/2 and 13/2 states in 187-208Pb are extracted....

28. Precision spectroscopy of RaF molecules for fundamental physics

Mr Silviu Marian Udrescu (Massachusetts Institute of Technology)

14/12/2021, 11:55

Submitted

Molecular spectroscopy represents a unique tool in the search for physics beyond the Standard Model and exploration of the fundamental forces of nature. Compared to atoms, molecules can offer up to eleven orders of magnitude enhanced sensitivity to violations of fundamental symmetries, testing energy scales up to hundreds of TeV. These effects are further enhanced in radioactive molecules,...

31. The 186Hg ground state deformation puzzle

Alejandro Algora (IFIC (CSIC-Univ. of Valencia)

14/12/2021, 12:10

Submitted

The structure of neutron-deficient Hg isotopes has attracted considerable attention since the 70-s. They present a particular staggering in the mean square nuclear radii, which is unique in the nuclear chart [1]. This phenomenon was interpreted as a change in the ground state structure and consequently on the ground state shape around A=186 [2]. A recent work at ISOLDE has extended the study...

24. The search for "missing links" of nuclear quadrupole moments – a status report

Heinz Haas (Univ. of Aveiro, Portugal)

14/12/2021, 12:30

Submitted

There are basically two ways to determine precision values for nuclear quadrupole moments (Q): Measurements for stable or reasonably long-lived (mostly ground) states by atomic and molecular spectroscopy and measurements for much shorter-lived excited states using nuclear condensed matter techniques like Moessbauer (MS) or perturbed angular distribution (PAD) (and correlation, PAC)...

58. 2021 at the CRIS experiment

Shane Wilkins (Massachusetts Institute of Technology)

14/12/2021, 12:45

Invited

2021 proved to be another fruitful year for the Collinear Resonance Ionization Spectroscopy (CRIS) collaboration with experimental campaigns on neutron-rich silver isotopes [1] and radium monofluoride molecules [2]. By performing high-resolution resonance ionization spectroscopy on radioactive species in a collinear geometry, the technique is able to exceed the sensitivity offered by...