Journal of East China Normal University(Natural Science) ›› 2021, Vol. 2021 ›› Issue (1): 82-91.doi: 10.3969/j.issn.1000-5641.202022007

• Physics and Electronics • Previous Articles     Next Articles

Low-energy effective field theory study of nuclear matter

Tingwei PAN, Jifeng YANG*()   

  1. School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
  • Received:2020-04-01 Online:2021-01-25 Published:2021-01-28
  • Contact: Jifeng YANG


In this study, the low-energy effective field theory approach is used to analyze nuclear matter and a zero-temperature Fermi system. By solving the Bethe-Goldstone equation (BGE) in the 1S0 channel, we obtain the closed-form Brückner G matrix and derive its renormalized non-perturbative form. Upon selecting values for relevant parameters, a number of physical issues are analyzed with the Brückner G matrix, such as pairing and single particle energy of a Fermi system in the density background. Lastly, the framework and results are compared with those published in the literature.

Key words: effective field theory, Brückner G matrix, renormalization, finite density

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