Hyperfine structure of the $2{}^{3}P$ state in ${}^9$Be and the nuclear quadrupole moment

Abstract

We have performed accurate calculations of the hyperfine structure of the $2{}^{3}P$ state in the ${}^9$Be atom with the help of highly optimized, explicitly correlated functions, accounting for the leading finite nuclear mass, radiative, nuclear structure and relativistic effects. By comparison with measurements, we have determined the ${}^9$Be nuclear quadrupole moment to be $Q_{\mathrm{N}}=0.05350(14)$ barns, which is not only the most accurate result, but also disagrees with previous determinations.

5 pages, 1 figure

References in corpus (5)

• Extraction of the neutron charge radius from a precision calculation of the deuteron structure radius
• Hyperfine structure of the metastable 3P2 state of alkaline earth atoms as an accurate probe of nuclear magnetic octupole moments
• Fine and hyperfine splitting of the 2P state in Li and Be${}^{+}$
• Hyperfine structure of the first rotational level in H${}_2$, D${}_2$ and HD molecules and the deuteron quadrupole moment
• Ground state hyperfine splitting in the Be${}^{+}$ ion

Cited by in corpus (3)

• Fine and hyperfine splitting of the low-lying states of ${}^9$Be
• Thermal radiative corrections to hyperfine structure of light hydrogen-like systems
• Computing quantum correlation functions by Importance Sampling method based on path integrals