Quadrupole Moment of 37K
Nuclear Experiment
2011-03-28 v1
Abstract
The electric quadrupole coupling constant of the ground state of 37K(3/2+, 1.22 s) in a tetragonal KH2PO4 single crystal was measured to be |eqQ/h| = 2.99 +- 0.07 MHz using the beta-ray detecting nuclear quadrupole resonance technique. The electric quadrupole moment of 37K was determined to be |Q(37K)| = 10.6 +- 0.4 efm2, where the known electric quadrupole coupling constant of stable 39K in the KH2PO4 crystal was used as a reference. The present experimental result is larger than that predicted by shell-model calculations in the sd or the sd and fp model spaces. A possible variation of effective charges was explored to explain the discrepancy.
Cite
@article{arxiv.0803.3923,
title = {Quadrupole Moment of 37K},
author = {P. F. Mantica and H. L. Crawford and J. S. Pinter and J. B. Stoker and Y. Utsuno and R. R. Weerasiri},
journal= {arXiv preprint arXiv:0803.3923},
year = {2011}
}
Comments
Accepted to Physics Letters B