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Dyson treatment of NFT medium polarization processes in superfluid nuclei

Idini, A. LU orcid ; Barranco, F. ; Vigezzi, E. and Broglia, R. A. (2011) International Nuclear Physics Conference 2010, INPC2010 In Journal of Physics: Conference Series 312.
Abstract

We discuss the solution of the Dyson equation (also known as the Nambu-Gor'kov equation) for the case of medium polarization Nuclear Field Theory (NFT) processes in nuclei, and apply it to the nucleus 120Sn. Starting from a mean field obtained with the Sly4 effective nucleon-nucleon force, (mk = 0.7), we renormalize the single-particle states and the pairing interaction through the coupling to collective vibrations of the system, obtaining a detailed description of the fragmentation of the quasiparticle strength and of the state-dependent pairing gap. These quantities are calculated in term of one- and two-particle spectroscopic amplitudes, amplitudes which can be used to calculate both one- and two-nucleon... (More)

We discuss the solution of the Dyson equation (also known as the Nambu-Gor'kov equation) for the case of medium polarization Nuclear Field Theory (NFT) processes in nuclei, and apply it to the nucleus 120Sn. Starting from a mean field obtained with the Sly4 effective nucleon-nucleon force, (mk = 0.7), we renormalize the single-particle states and the pairing interaction through the coupling to collective vibrations of the system, obtaining a detailed description of the fragmentation of the quasiparticle strength and of the state-dependent pairing gap. These quantities are calculated in term of one- and two-particle spectroscopic amplitudes, amplitudes which can be used to calculate both one- and two-nucleon absolute transfer reaction cross sections to be directly confronted with the experimental findings.

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author
; ; and
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
host publication
-
series title
Journal of Physics: Conference Series
volume
312
edition
SECTION 9
conference name
International Nuclear Physics Conference 2010, INPC2010
conference location
Vancouver, BC, Canada
conference dates
2010-07-04 - 2010-07-09
external identifiers
  • scopus:80455127315
ISSN
1742-6588
DOI
10.1088/1742-6596/312/9/092032
language
English
LU publication?
no
id
2f99fc85-cf84-4019-835f-86fffe7bcd59
date added to LUP
2020-07-27 09:11:46
date last changed
2022-02-01 07:43:14
@inproceedings{2f99fc85-cf84-4019-835f-86fffe7bcd59,
  abstract     = {{<p>We discuss the solution of the Dyson equation (also known as the Nambu-Gor'kov equation) for the case of medium polarization Nuclear Field Theory (NFT) processes in nuclei, and apply it to the nucleus <sup>120</sup>Sn. Starting from a mean field obtained with the Sly4 effective nucleon-nucleon force, (m<sub>k</sub> = 0.7), we renormalize the single-particle states and the pairing interaction through the coupling to collective vibrations of the system, obtaining a detailed description of the fragmentation of the quasiparticle strength and of the state-dependent pairing gap. These quantities are calculated in term of one- and two-particle spectroscopic amplitudes, amplitudes which can be used to calculate both one- and two-nucleon absolute transfer reaction cross sections to be directly confronted with the experimental findings.</p>}},
  author       = {{Idini, A. and Barranco, F. and Vigezzi, E. and Broglia, R. A.}},
  booktitle    = {{-}},
  issn         = {{1742-6588}},
  language     = {{eng}},
  month        = {{01}},
  series       = {{Journal of Physics: Conference Series}},
  title        = {{Dyson treatment of NFT medium polarization processes in superfluid nuclei}},
  url          = {{http://dx.doi.org/10.1088/1742-6596/312/9/092032}},
  doi          = {{10.1088/1742-6596/312/9/092032}},
  volume       = {{312}},
  year         = {{2011}},
}