Email this article Zero-sound branches in asymmetric nuclear matter
- Authors: Sadovnikova V.A.1, Sokolov M.A.2
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Affiliations:
- Konstantinov Petersburg Nuclear Physics Institute
- Peter the Great Polytechnical University
- Issue: Vol 80, No 8 (2016)
- Pages: 981-984
- Section: Proceedings of the LXV International Conference “Nucleus 2015. New Horizons in Nuclear Physics, Nuclear Engineering, Femto- and Nanotechnologies” (LXV International Meeting on Nuclear Spectroscopy and Nuclear Structure) (St. Petersburg, June–July 201
- URL: https://journals.rcsi.science/1062-8738/article/view/184784
- DOI: https://doi.org/10.3103/S1062873816080359
- ID: 184784
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Abstract
A polarization operator constructed in the random phase approximation is used to obtain zero-sound excitations in isospin asymmetric nuclear matter (ANM). Two families of the complex solutions ωsτ(k),τ= p,n are presented. The imaginary part of the solutions corresponds to the damping of the collective mode due to its overlapping with the particle-hole modes and the subsequent emission of a proton (ωsp(k)) or a neutron (ωsn(k)). The dependence of the solutions on the asymmetry parameter is studied.
About the authors
V. A. Sadovnikova
Konstantinov Petersburg Nuclear Physics Institute
Author for correspondence.
Email: sadovnik@thd.pnpi.spb.ru
Russian Federation, Gatchina, Leningrad oblast, 188300
M. A. Sokolov
Peter the Great Polytechnical University
Email: sadovnik@thd.pnpi.spb.ru
Russian Federation, St. Petersburg, 195251
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