Elsevier

Nuclear Physics A

Volume 262, Issue 3, 24 May 1976, Pages 493-515
Nuclear Physics A

Muonic X-ray study of the charge distribution of 165Ho

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Abstract

We report the measurement of the energies of 4f → 3d, 3d → 2p, 2p → 1s, 3p → 2s and 2s → 2p muonic atomic transitions in 165Ho. Using transitions to and from the 1s, 2s, 2p and 3p levels, as well as the hyperfine splittings of the 2p, 3p, and 3d states, we have fitted our data to two distinct deformed Fermi distributions: one with a constant skin thickness; the other with a skin thickness which varies as a function of polar angle. Both yield good fits. The necessity of adding nuclear polarization corrections is demonstrated. The spectroscopic quadrupole moments of the first two nuclear states are determined to be 3.49±0.03 e · b and 3.43±0.04 e · b, respectively. The groundstate intrinsic hexadecapole moment is determined to be 0.50±0.23 e · b2.

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    Work supported in part by ERDA, Contracts AT[04-3]-63, and AT[11-1]-]-2197, by the National Science Foundation and the National Aeronautics and Space Administration, Grant # NGL-47-004-033.

    ††

    Present address: Philip Morris Research Center, Commerce Road, Richmond, Virginia.

    †††

    Present address: Lawrence Livermore Laboratory, Livermore, California.

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