Nuclear response at zero and finite temperature

We present some recent developments on the nuclear many-body problem, such as the treatment of high-order correlations and finite temperature in the description of in-medium two-nucleon propagators. In this work we discuss two-time propagators of the particle-hole type, which describe the response o...

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Bibliographic Details
Main Authors: Litvinova, Elena, Schuck, Peter, Wibowo, Herlik
Format: Conference Proceeding
Language:English
Subjects:
Equations of motion
Multipoles
Nuclei
Nucleon-nucleon interactions
Nucleons
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Summary:We present some recent developments on the nuclear many-body problem, such as the treatment of high-order correlations and finite temperature in the description of in-medium two-nucleon propagators. In this work we discuss two-time propagators of the particle-hole type, which describe the response of finite nuclei to external probes without nucleon transfer. The general theory is formulated in terms of the equation of motion method for these propagators with the only input from the bare nucleon-nucleon interaction. The numerical implementation was performed on the basis of the effective mason-nucleon Lagrangian in order to study the energy-dependent kernels of different complexity. The finite-temperature extension of the theory with ph ⊗ phonon configurations is applied to a study of the multipole response of medium-mass nuclei.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201922301033