Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2008-03-27
Phys.Lett.B662:389-395,2008
Physics
Nuclear Physics
Nuclear Experiment
Accepted to Physics Letters B
Scientific paper
10.1016/j.physletb.2008.03.049
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.
Crawford H. L.
Mantica P. F.
Pinter J. S.
Stoker J. B.
Utsuno Yutaka
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