Nuclear Charge Radii of ${}^{10,11}$B

Abstract

The first determination of the nuclear charge radius by laser spectroscopy for a five-electron system is reported. This is achieved by combining high-accuracy ab initio mass-shift calculations and a high-resolution measurement of the isotope shift in the $2s^{2}2p{}^2{\mathrm{P}}_{1/2}\to 2s^{2}3s{}^2{\mathrm{S}}_{1/2}$ ground state transition in boron atoms. Accuracy is increased by orders of magnitude for the stable isotopes ${}^{10,11}$B and the results are used to extract their difference in the mean-square charge radius $⟨r_{\mathrm{c}}^2{⟩}^{11}-⟨r_{\mathrm{c}}^2{⟩}^{10}=-0.49(12){\mathrm{fm}}^2$. The result is qualitatively explained by a possible cluster structure of the boron nuclei and quantitatively used as a benchmark for new ab initio nuclear structure calculations using the no-core shell model and Green's function Monte Carlo approaches.

References in corpus (4)

• Accurate nuclear radii and binding energies from a chiral interaction
• Nuclear Charge Radii of Be-7,9,10 and the one-neutron halo nucleus Be-11
• Relativistic, QED, and finite nuclear mass corrections for low-lying states of Li and Be${}^{+}$
• Higher-order recoil corrections for singlet states of the helium atom

Cited by in corpus (11)

• Laser Spectroscopy for the Study of Exotic Nuclei
• QED calculation of the dipole polarizability of helium atom
• Complete ${\alpha }^{7}m$ Lamb shift of helium triplet states
• Towards Precision Muonic X-Ray Measurements of Charge Radii of Light Nuclei
• Model-QED-operator approach to relativistic calculations of the nuclear recoil effect in many-electron atoms and ions
• Collinear Laser Spectroscopy of $2{}^3{S}_1\to 2{}^3{P}_J$ transitions in helium-like ${}^{12}{\mathrm{C}}^{4+}$
• Fine and hyperfine splitting of the low-lying states of ${}^9$Be
• The nuclear charge radius of ${}^{13}\mathrm{C}$
• Collinear laser spectroscopy of highly charged ions produced with an electron beam ion source
• High-Precision Ab Initio Radius Calculations of Boron Isotopes
• Modelling of transient interference phenomena in collinear laser spectroscopy