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Collective Modes in a Slab of Interacting Nuclear Matter: The effects of finite range interactions

W. M. Alberico·P. Czerski·A. De Pace·V. R. Manfredi
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Abstract

We consider a slab of nuclear matter and investigate the collective excitations, which develop in the response function of the system. We introduce a finite-range realistic interaction among the nucleons, which reproduces the full G-matrix by a linear combination of gaussian potentials in the various spin-isospin channels. We then analyze the collective modes of the slab in the S=T=1 channel: for moderate momenta hard and soft zero-sound modes are found, which exhaust most of the excitation strength. At variance with the results obtained with a zero range force, new "massive" excitations are found for the vector-isovector channel .

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W. M. Alberico, P. Czerski, A. De Pace, V. R. Manfredi. 1993-04-07. Collective Modes in a Slab of Interacting Nuclear Matter: The effects of finite range interactions. https://doi.org/10.1007/bf01291647

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