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Dresden 2000 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 14: Postersitzung / Theorie

HK 14.34: Poster

Thursday, March 23, 2000, 10:15–12:45, B 113

Matter and Charge Distributions of Lithium Isotopes in the DC Model — •M. Tomaselli1, P. Egelhof2, S.R. Neumaier2, M. Mutterer1, T. Kühl2, A. Dax2, F. Schmitt2, and S. Fritzsche31Technische Universität Darmstadt, D-64289 Darmstadt, Germany — 2Gesellschaft für Schwerionenforschung mbH (GSI),D-64291 Darmstadt, Germany — 3Universität Kassel, D-34132 Kassel, Germany

The knowledge of matter and charge radii of lithium isotopes as well as of matter and charge distributions, is an important input in the analysis of the proton [1] and electron [2] scattering experiments, and in the evaluation of the data of the newly proposed isotope shift measurments [3]. The lithium isotopes with mass A ranging from 5 to 11 have been described in the DCM. We discuss the following mix-mode states: {p}+{2p−1h} for 5Li, {h}+{2h−1p} for 7Li, {2p}+{3p−1h} for 6Li, {4p}+{5p−1h} for 8Li, {2p−1h}+{3p−2h} for 9Li, and {3p}+{4p−1h} for 11Li [4]. The calculated radii are in good agreement with the experimental results [5]. Within the calculated matter distribution for 6Li, the proton scattering cross sections of p-6Li at an energy of 0.7 GeV/u can be predicted. The calculated distributions of the lithium isotopes are strongly influenced by the isospin behaviour of the core collective modes.

[1] S.R. Neumaier et al., Nucl. Phys. A (1999) to be published

[2] G.C. Li et al., Nucl. Phys. A126 (1971) 583

[3] F. Schmitt et al., Hyperfine Interaction to be published

[4] M. Tomaselli et al., Hyperfine Interaction to be published

[5] I. Tanihata, Phys. Lett. B 206 (1988) 59; H. de Vries et al., At. Data, Nucl. Data Tables 36 (1987) 189

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