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Author Trzcinska, A. ♦ Jastrze bski, J. ♦ Lubinski, P. ♦ Hartmann, F. J. ♦ Schmidt, R. ♦ von Egidy, T. ♦ Klos, B.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword PHYSICS OF ELEMENTARY PARTICLES AND FIELDS ♦ NUCLEAR PHYSICS AND RADIATION PHYSICS ♦ ANNIHILATION ♦ ANTIPROTONS ♦ HADRONIC ATOMS ♦ NEUTRON DENSITY ♦ NEUTRONS ♦ NUCLEAR RADII ♦ NUCLEI ♦ PROTON DENSITY ♦ PROTONS ♦ RESIDUES ♦ SPECTROSCOPY ♦ TARGETS
Abstract The differences between neutron and proton density distributions at large nuclear radii in stable nuclei were determined. Two experimental methods were applied: nuclear spectroscopy analysis of the antiproton annihilation residues one mass unit lighter than the target mass and the measurements of strong-interaction effects on antiprotonic x rays. Assuming the validity of two-parameter Fermi neutron and proton distributions at these large radii, the conclusions are that the two experiments are consistent with each other and that for neutron rich nuclei it is mostly the neutron diffuseness which increases and not the half-density radius. The obtained neutron and proton rms radii differences are in agreement with previous results.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-08-20
Publisher Place United States
Journal Physical Review Letters
Volume Number 87
Issue Number 8


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