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Title: Nuclear charge radii of the tin isotopes from muonic atoms

Abstract

The muonic atom 2{ital p}{sub 1/2}-1{ital s}{sub 1/2} and 2{ital p}{sub 3/2}-1{ital s}{sub 1/2} transition energies were measured with an experimental accuracy of better than 20 ppm for the isotope chain {sup 112,114,116,117,118,119,120,122,124}Sn. Precise values for the Barrett equivalent nuclear radii {ital R}{sub {ital k}{alpha}} and their differences as well as root-mean-square radii were deduced. The {Delta}{ital N}=2 isotope shifts between the even Sn isotopes show a subshell effect at the neutron number {ital N}=64. Otherwise, there is a nearly linear decrease with increasing {ital N}, in accordance with the general systematics of nuclear charge radii. Our muonic atom results are in a good agreement with recent optical data, including odd-even staggering. Hartree-Fock calculations reproduce the general trend but not the subshell effect. Regarding the nuclear polarization corrections, the problem in the 2{ital p} splitting found earlier in {mu}{sup {minus}}-Zr and {mu}{sup {minus}}-Pb seems also to persist in {mu}{sup {minus}}-Sn.

Authors:
; ; ; ; ;  [1]; ; ;  [2]
  1. Physikinstitut der Universitaet Fribourg, CH-1700 Fribourg (Switzerland)
  2. Institut fuer Kernphysik der Universitaet Mainz, D-6500 Mainz (Federal Republic of Germany)
Publication Date:
OSTI Identifier:
6359351
Resource Type:
Journal Article
Journal Name:
Physical Review, C (Nuclear Physics); (USA)
Additional Journal Information:
Journal Volume: 42:1; Journal ID: ISSN 0556-2813
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; MUONIC ATOMS; ENERGY-LEVEL TRANSITIONS; TIN; TIN ISOTOPES; NUCLEAR RADII; CHARGE DISTRIBUTION; EXPERIMENTAL DATA; HARTREE-FOCK METHOD; LEAD; MUONS MINUS; POLARIZATION; ZIRCONIUM; ATOMS; DATA; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; INFORMATION; ISOTOPES; LEPTONS; METALS; MUONS; NUCLEAR PROPERTIES; NUMERICAL DATA; TRANSITION ELEMENTS; 651720* - Nuclear Properties & Reactions, A=90-149, Experimental; 640303 - Atomic, Molecular & Chemical Physics- Positronium, Muonium, & Muonic & Mesic Atoms & Molecules

Citation Formats

Piller, C, Gugler, C, Jacot-Guillarmod, R, Schaller, L A, Schellenberg, L, Schneuwly, H, Fricke, G, Hennemann, T, and Herberz, J. Nuclear charge radii of the tin isotopes from muonic atoms. United States: N. p., 1990. Web. doi:10.1103/PhysRevC.42.182.
Piller, C, Gugler, C, Jacot-Guillarmod, R, Schaller, L A, Schellenberg, L, Schneuwly, H, Fricke, G, Hennemann, T, & Herberz, J. Nuclear charge radii of the tin isotopes from muonic atoms. United States. doi:10.1103/PhysRevC.42.182.
Piller, C, Gugler, C, Jacot-Guillarmod, R, Schaller, L A, Schellenberg, L, Schneuwly, H, Fricke, G, Hennemann, T, and Herberz, J. Sun . "Nuclear charge radii of the tin isotopes from muonic atoms". United States. doi:10.1103/PhysRevC.42.182.
@article{osti_6359351,
title = {Nuclear charge radii of the tin isotopes from muonic atoms},
author = {Piller, C and Gugler, C and Jacot-Guillarmod, R and Schaller, L A and Schellenberg, L and Schneuwly, H and Fricke, G and Hennemann, T and Herberz, J},
abstractNote = {The muonic atom 2{ital p}{sub 1/2}-1{ital s}{sub 1/2} and 2{ital p}{sub 3/2}-1{ital s}{sub 1/2} transition energies were measured with an experimental accuracy of better than 20 ppm for the isotope chain {sup 112,114,116,117,118,119,120,122,124}Sn. Precise values for the Barrett equivalent nuclear radii {ital R}{sub {ital k}{alpha}} and their differences as well as root-mean-square radii were deduced. The {Delta}{ital N}=2 isotope shifts between the even Sn isotopes show a subshell effect at the neutron number {ital N}=64. Otherwise, there is a nearly linear decrease with increasing {ital N}, in accordance with the general systematics of nuclear charge radii. Our muonic atom results are in a good agreement with recent optical data, including odd-even staggering. Hartree-Fock calculations reproduce the general trend but not the subshell effect. Regarding the nuclear polarization corrections, the problem in the 2{ital p} splitting found earlier in {mu}{sup {minus}}-Zr and {mu}{sup {minus}}-Pb seems also to persist in {mu}{sup {minus}}-Sn.},
doi = {10.1103/PhysRevC.42.182},
journal = {Physical Review, C (Nuclear Physics); (USA)},
issn = {0556-2813},
number = ,
volume = 42:1,
place = {United States},
year = {1990},
month = {7}
}