Medium polarization effects on the superuidity of finite nuclei and of the inner crust of neutron stars
Avogadro, P. ; Barranco, F. ; Idini, A. LU
and Vigezzi, E.
(2013)
p.243-262
- Abstract
We review recent progress made in understanding the role of medium polarization on superuidity in finite nuclei and in the inner crust of neutron stars. The interweaving of collective and quasiparticle degrees of freedom is treated within the framework of Nuclear Field Theory, propagating the basic renormalization processes through the Nambu-Gor’kov equations. It is then possible to obtain quantitative insight concerning the mechanisms which are at the basis of nuclear pairing, by studying how superuidity is affected by quasiparticle-phonon self-energy processes leading to quasiparticle strength fragmentation and by the exchange of collective vibrations between pairs of nucleons. The overall comparison with data in exotic and heavy... (More)
We review recent progress made in understanding the role of medium polarization on superuidity in finite nuclei and in the inner crust of neutron stars. The interweaving of collective and quasiparticle degrees of freedom is treated within the framework of Nuclear Field Theory, propagating the basic renormalization processes through the Nambu-Gor’kov equations. It is then possible to obtain quantitative insight concerning the mechanisms which are at the basis of nuclear pairing, by studying how superuidity is affected by quasiparticle-phonon self-energy processes leading to quasiparticle strength fragmentation and by the exchange of collective vibrations between pairs of nucleons. The overall comparison with data in exotic and heavy nuclei supports this dynamical picture, shedding light on the roles played by the bare nucleon-nucleon interaction and by medium polarization effects.
(Less)
- author
- Avogadro, P.
; Barranco, F.
; Idini, A.
LU
and Vigezzi, E.
- publishing date
- 2013-01-01
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Fifty Years of Nuclear BCS : Pairing in Finite Systems - Pairing in Finite Systems
- pages
- 20 pages
- publisher
- World Scientific Publishing
- external identifiers
-
- scopus:84973454854
- ISBN
- 9789814412490
- 9789814412483
- DOI
- 10.1142/9789814412490_0018
- language
- English
- LU publication?
- no
- id
- ef43e868-4b24-4e59-ae46-9dd592e00ef9
- date added to LUP
- 2020-07-27 09:06:46
- date last changed
- 2024-03-20 14:39:34
@inbook{ef43e868-4b24-4e59-ae46-9dd592e00ef9,
abstract = {{<p>We review recent progress made in understanding the role of medium polarization on superuidity in finite nuclei and in the inner crust of neutron stars. The interweaving of collective and quasiparticle degrees of freedom is treated within the framework of Nuclear Field Theory, propagating the basic renormalization processes through the Nambu-Gor’kov equations. It is then possible to obtain quantitative insight concerning the mechanisms which are at the basis of nuclear pairing, by studying how superuidity is affected by quasiparticle-phonon self-energy processes leading to quasiparticle strength fragmentation and by the exchange of collective vibrations between pairs of nucleons. The overall comparison with data in exotic and heavy nuclei supports this dynamical picture, shedding light on the roles played by the bare nucleon-nucleon interaction and by medium polarization effects.</p>}},
author = {{Avogadro, P. and Barranco, F. and Idini, A. and Vigezzi, E.}},
booktitle = {{Fifty Years of Nuclear BCS : Pairing in Finite Systems}},
isbn = {{9789814412490}},
language = {{eng}},
month = {{01}},
pages = {{243--262}},
publisher = {{World Scientific Publishing}},
title = {{Medium polarization effects on the superuidity of finite nuclei and of the inner crust of neutron stars}},
url = {{http://dx.doi.org/10.1142/9789814412490_0018}},
doi = {{10.1142/9789814412490_0018}},
year = {{2013}},
}