Pairing forces in nuclei

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In this contribution, the author mentions some features of pairing forces that are unique to nuclei and cover some areas of major interest in nuclear structure research, that involve pairing. At the level of most nuclear structure studies, nuclei are treated as consisting of two kinds of fermions (protons and neutrons) in a valence space with rather few levels. These features give rise to unique aspects of pairing forces in nuclei: (1) n-p pairing in T = 0 as well as the usual T = 1 pairing that is characteristic of like fermions; (2) a need to correct pairing calculations ... continued below

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18 p.

Creation Information

Chasman, R.R. December 31, 1996.

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  • Chasman, R.R. Argonne National Lab., IL (United States). Physics Div.

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Description

In this contribution, the author mentions some features of pairing forces that are unique to nuclei and cover some areas of major interest in nuclear structure research, that involve pairing. At the level of most nuclear structure studies, nuclei are treated as consisting of two kinds of fermions (protons and neutrons) in a valence space with rather few levels. These features give rise to unique aspects of pairing forces in nuclei: (1) n-p pairing in T = 0 as well as the usual T = 1 pairing that is characteristic of like fermions; (2) a need to correct pairing calculations for the (1/N) effects that can typically be neglected in superconducting solids. An issue of current concern is the nature of the pairing interaction: several recent studies suggest a need for a density dependent form of the pairing interaction. There is a good deal of feedback between the questions of accurate calculations of pairing interactions and the form and magnitude of the pairing interaction. Finally, the authors discuss some many-body wave functions that are a generalization of the BCS wave function form, and apply them to a calculation of energy level spacings in superdeformed rotational bands.

Physical Description

18 p.

Notes

INIS; OSTI as DE97004087

Source

  • 20. international workshop on condensed matter theories, Pune (India), 9-13 Dec 1996

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  • Other: DE97004087
  • Report No.: ANL/PHY/CP--92450
  • Report No.: CONF-961258--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 459437
  • Archival Resource Key: ark:/67531/metadc677578

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 31, 1996

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  • July 25, 2015, 2:21 a.m.

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  • Dec. 14, 2015, 6:28 p.m.

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Chasman, R.R. Pairing forces in nuclei, article, December 31, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc677578/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.