The 4He Total Photo-Absorption Cross Section With Two- Plus Three-Nucleon Interactions From Chiral Effective Field Theory

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The total photo-absorption cross section of {sup 4}He is evaluated microscopically using two- (NN) and three-nucleon (NNN) interactions based upon chiral effective field theory ({chi}EFT). The calculation is performed using the Lorentz integral transform method along with the ab initio no-core shell model approach. An important feature of the present study is the consistency of the NN and NNN interactions and also, through the Siegert theorem, of the two- and three-body current operators. This is due to the application of the {chi}EFT framework. The inclusion of the NNN interaction produces a suppression of the peak height and enhancement of the ... continued below

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8 p. (0.3 MB)

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Quaglioni, S & Navratil, P March 9, 2007.

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The total photo-absorption cross section of {sup 4}He is evaluated microscopically using two- (NN) and three-nucleon (NNN) interactions based upon chiral effective field theory ({chi}EFT). The calculation is performed using the Lorentz integral transform method along with the ab initio no-core shell model approach. An important feature of the present study is the consistency of the NN and NNN interactions and also, through the Siegert theorem, of the two- and three-body current operators. This is due to the application of the {chi}EFT framework. The inclusion of the NNN interaction produces a suppression of the peak height and enhancement of the tail of the cross section. We compare to calculations obtained using other interactions and to representative experiments. The rather confused experimental situation in the giant resonance region prevents discrimination among different interaction models.

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8 p. (0.3 MB)

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PDF-file: 8 pages; size: 0.3 Mbytes

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  • Journal Name: Physics Letters B, vol. 652, n/a, June 25, 2007, pp. 370-375; Journal Volume: 652

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  • Report No.: UCRL-JRNL-229340
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 920876
  • Archival Resource Key: ark:/67531/metadc902795

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

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  • March 9, 2007

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  • Sept. 27, 2016, 1:39 a.m.

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  • April 17, 2017, 1:33 p.m.

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Quaglioni, S & Navratil, P. The 4He Total Photo-Absorption Cross Section With Two- Plus Three-Nucleon Interactions From Chiral Effective Field Theory, article, March 9, 2007; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc902795/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.