Neutron skin deduced from antiprotonic atom data

B. Alex Brown, G. Shen, G. C. Hillhouse, J. Meng, A. Trzcińska

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The relationship between the nucleon density at large radii and the value of the rms radius is investigated in the framework of Skyrme Hartree-Fock and relativistic mean-field models. From a comparison to the charge density we constrain the models in terms of the nuclear matter incompressibility and effective mass properties required to reproduce the density shape. The results are used to extract the rms neutron radius for Pb208 from antiprotonic atom data. The result for the difference between the neutron and proton rms radii, the so-called neutron-skin thickness, is S=0.20(±0.04)(±0.05) fm, where ±0.04 fm is experimental error from the antiprotonic line width, and ±0.05 fm is the theoretical error suggested from the comparison of the models with the experimental charge density.

Original languageEnglish
Article number034305
JournalPhysical Review C - Nuclear Physics
Volume76
Issue number3
DOIs
Publication statusPublished - Sep 6 2007

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neutrons
radii
atoms
incompressibility
protons

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Brown, B. Alex ; Shen, G. ; Hillhouse, G. C. ; Meng, J. ; Trzcińska, A. / Neutron skin deduced from antiprotonic atom data. In: Physical Review C - Nuclear Physics. 2007 ; Vol. 76, No. 3.
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Neutron skin deduced from antiprotonic atom data. / Brown, B. Alex; Shen, G.; Hillhouse, G. C.; Meng, J.; Trzcińska, A.

In: Physical Review C - Nuclear Physics, Vol. 76, No. 3, 034305, 06.09.2007.

Research output: Contribution to journalArticle

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